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class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Evolutionary_perspective"> <div class="vector-toc-text"> 3 Evolutionary perspective </div> </a> <button aria-controls="toc-Evolutionary_perspective-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> Toggle Evolutionary perspective subsection </button> <ul id="toc-Evolutionary_perspective-sublist" class="vector-toc-list"> <li id="toc-Evolutionary_approach" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Evolutionary_approach"> <div class="vector-toc-text"> 3.1 Evolutionary approach </div> </a> <ul id="toc-Evolutionary_approach-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Male_preference_for_younger_females" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Male_preference_for_younger_females"> <div class="vector-toc-text"> 3.2 Male preference for younger females </div> </a> <ul id="toc-Male_preference_for_younger_females-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Female_preference_for_older_males" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Female_preference_for_older_males"> <div class="vector-toc-text"> 3.3 Female preference for older males </div> </a> <ul id="toc-Female_preference_for_older_males-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Cross-cultural_differences" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cross-cultural_differences"> <div class="vector-toc-text"> 4 Cross-cultural differences </div> </a> <button aria-controls="toc-Cross-cultural_differences-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> Toggle Cross-cultural differences subsection </button> <ul id="toc-Cross-cultural_differences-sublist" class="vector-toc-list"> <li id="toc-Larger_than_average_age-gaps" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Larger_than_average_age-gaps"> <div class="vector-toc-text"> 4.1 Larger than average age-gaps </div> </a> <ul id="toc-Larger_than_average_age-gaps-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Smaller_than_average_age-gaps" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Smaller_than_average_age-gaps"> <div class="vector-toc-text"> 4.2 Smaller than average age-gaps </div> </a> <ul id="toc-Smaller_than_average_age-gaps-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Social_perspectives" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Social_perspectives"> <div class="vector-toc-text"> 5 Social perspectives </div> </a> <button aria-controls="toc-Social_perspectives-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> Toggle Social perspectives subsection </button> <ul id="toc-Social_perspectives-sublist" class="vector-toc-list"> <li id="toc-Social_structural_origin_theory" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Social_structural_origin_theory"> <div class="vector-toc-text"> 5.1 Social structural origin theory </div> </a> <ul id="toc-Social_structural_origin_theory-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-The_rational_choice_model" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#The_rational_choice_model"> <div class="vector-toc-text"> 5.2 The rational choice model </div> </a> <ul id="toc-The_rational_choice_model-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Age-hypogamy_in_relationships" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Age-hypogamy_in_relationships"> <div class="vector-toc-text"> 6 Age-hypogamy in relationships </div> </a> <ul id="toc-Age-hypogamy_in_relationships-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-"Half-your-age-plus-seven"_rule" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#"Half-your-age-plus-seven"_rule"> <div class="vector-toc-text"> 7 "Half-your-age-plus-seven" rule </div> </a> <ul id="toc-"Half-your-age-plus-seven"_rule-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Slang_terms" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Slang_terms"> <div class="vector-toc-text"> 8 Slang terms </div> </a> <ul id="toc-Slang_terms-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> 9 See also </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> 10 References </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> 11 Further reading </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" 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Available in 15 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-15" aria-hidden="true" > 15 languages </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D9%84%D8%AA%D9%81%D8%A7%D9%88%D8%AA_%D8%A7%D9%84%D8%B9%D9%85%D8%B1%D9%8A_%D9%81%D9%8A_%D8%A7%D9%84%D8%B9%D9%84%D8%A7%D9%82%D8%A7%D8%AA_%D8%A7%D9%84%D8%AC%D9%86%D8%B3%D9%8A%D8%A9" title="التفاوت العمري في العلاقات الجنسية – Arabic" lang="ar" hreflang="ar" data-title="التفاوت العمري في العلاقات الجنسية" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target">العربية</a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Difer%C3%A8ncia_d%27edat_en_les_relacions_sexuals" title="Diferència d'edat en les relacions sexuals – Catalan" lang="ca" hreflang="ca" data-title="Diferència d'edat en les relacions sexuals" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target">Català</a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Altersunterschiede_in_Partnerschaften" title="Altersunterschiede in Partnerschaften – German" lang="de" hreflang="de" data-title="Altersunterschiede in Partnerschaften" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target">Deutsch</a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Diferencia_de_edad_en_las_relaciones_sexuales" title="Diferencia de edad en las relaciones sexuales – Spanish" lang="es" hreflang="es" data-title="Diferencia de edad en las relaciones sexuales" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target">Español</a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/A%C4%9Do-diferenco_en_seksrilatoj" title="Aĝo-diferenco en seksrilatoj – Esperanto" lang="eo" hreflang="eo" data-title="Aĝo-diferenco en seksrilatoj" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target">Esperanto</a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%D8%A7%D8%A8%D8%B1%D8%A7%D8%A8%D8%B1%DB%8C_%D8%B3%D9%86%DB%8C_%D8%AF%D8%B1_%D8%B1%D9%88%D8%A7%D8%A8%D8%B7_%D8%AC%D9%86%D8%B3%DB%8C" title="نابرابری سنی در روابط جنسی – Persian" lang="fa" hreflang="fa" data-title="نابرابری سنی در روابط جنسی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target">فارسی</a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Diff%C3%A9rence_d%27%C3%A2ge_dans_les_relations_sexuelles" title="Différence d'âge dans les relations sexuelles – French" lang="fr" hreflang="fr" data-title="Différence d'âge dans les relations sexuelles" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target">Français</a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%82%98%EC%9D%B4_%EC%B0%A8%EC%9D%B4%EC%99%80_%EC%84%B1%EC%A0%81_%EA%B4%80%EA%B3%84" title="나이 차이와 성적 관계 – Korean" lang="ko" hreflang="ko" data-title="나이 차이와 성적 관계" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target">한국어</a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Differentia_de_etate_in_le_relationes_sexual" title="Differentia de etate in le relationes sexual – Interlingua" lang="ia" hreflang="ia" data-title="Differentia de etate in le relationes sexual" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target">Interlingua</a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Differenza_di_et%C3%A0_nelle_relazioni_sessuali" title="Differenza di età nelle relazioni sessuali – Italian" lang="it" hreflang="it" data-title="Differenza di età nelle relazioni sessuali" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target">Italiano</a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Leeftijdsverschil_tussen_partners" title="Leeftijdsverschil tussen partners – Dutch" lang="nl" hreflang="nl" data-title="Leeftijdsverschil tussen partners" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target">Nederlands</a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Diferen%C3%A7a_de_idade_nas_rela%C3%A7%C3%B5es_sexuais" title="Diferença de idade nas relações sexuais – Portuguese" lang="pt" hreflang="pt" data-title="Diferença de idade nas relações sexuais" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target">Português</a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/%C3%85ldersskillnader_i_sexuella_relationer" title="Åldersskillnader i sexuella relationer – Swedish" lang="sv" hreflang="sv" data-title="Åldersskillnader i sexuella relationer" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target">Svenska</a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Kalakihan_ng_agwat_sa_edad_sa_mga_relasyong_sekswal" title="Kalakihan ng agwat sa edad sa mga relasyong sekswal – Tagalog" lang="tl" hreflang="tl" data-title="Kalakihan ng agwat sa edad sa mga relasyong sekswal" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target">Tagalog</a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%80%A7%E9%97%9C%E4%BF%82%E4%B8%AD%E7%9A%84%E5%B9%B4%E9%BD%A1%E5%B7%AE%E8%B7%9D" title="性關係中的年齡差距 – Chinese" lang="zh" hreflang="zh" data-title="性關係中的年齡差距" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target">中文</a></li> </ul> <div class="after-portlet after-portlet-lang"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q439007#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu 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a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media print{body.ns-0 .mw-parser-output .sidebar{display:none!important}}</style><table class="sidebar nomobile nowraplinks"><tbody><tr><td class="sidebar-pretitle">Part of a series on</td></tr><tr><th class="sidebar-title-with-pretitle"><a href="/wiki/Sex_differences_in_humans" title="Sex differences in humans">Sex differences in humans</a></th></tr><tr><td class="sidebar-image"><a href="/wiki/File:Human.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Human.svg/100px-Human.svg.png" decoding="async" width="100" height="125" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Human.svg/150px-Human.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Human.svg/200px-Human.svg.png 2x" data-file-width="1060" data-file-height="1320" /></a></td></tr><tr><th class="sidebar-heading" style="border-bottom: 1px #fafafa solid;"> Biology</th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Sexual_differentiation_in_humans" title="Sexual differentiation in humans">Sexual differentiation</a> <ul><li><a href="/wiki/Disorders_of_sex_development" title="Disorders of sex development">disorders</a></li></ul></li> <li><a href="/wiki/Sex_as_a_biological_variable" title="Sex as a biological variable">In research</a></li> <li><a href="/wiki/Sex_differences_in_human_physiology" title="Sex differences in human physiology">Physiology</a></li> <li><a href="/wiki/Sexual_dimorphism#Humans" title="Sexual dimorphism">Dimorphism</a> <ul><li><a href="/wiki/Sexual_dimorphism_measures" title="Sexual dimorphism measures">Scientific measures</a></li></ul></li></ul></td> </tr><tr><th class="sidebar-heading" style="border-bottom: 1px #fafafa solid;"> <a href="/wiki/Sex_differences_in_medicine" title="Sex differences in medicine">Medicine</a> and <a href="/wiki/Gender_disparities_in_health" title="Gender disparities in health">health</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Sex_differences_in_autoimmunity" class="mw-redirect" title="Sex differences in autoimmunity">Autoimmunity</a></li> <li><a href="/wiki/Sex_differences_in_life_expectancy" class="mw-redirect" title="Sex differences in life expectancy">Life expectancy</a></li> <li><a href="/wiki/Mental_disorders_and_gender" title="Mental disorders and gender">Mental disorders</a> <ul><li><a href="/wiki/Sex_and_gender_differences_in_autism" title="Sex and gender differences in autism">autism</a></li> <li><a href="/wiki/Sex_differences_in_depression" class="mw-redirect" title="Sex differences in depression">depression</a></li> <li><a href="/wiki/Sex_differences_in_schizophrenia" title="Sex differences in schizophrenia">schizophrenia</a></li> <li><a href="/wiki/Sex_differences_in_substance_abuse" class="mw-redirect" title="Sex differences in substance abuse">substance abuse</a></li> <li><a href="/wiki/Gender_differences_in_suicide" title="Gender differences in suicide">suicide</a></li></ul></li> <li><a href="/wiki/Sex_differences_in_stroke_care" title="Sex differences in stroke care">Stroke care</a></li></ul></td> </tr><tr><th class="sidebar-heading" style="border-bottom: 1px #fafafa solid;"> <a href="/wiki/Neuroscience_of_sex_differences" title="Neuroscience of sex differences">Neuroscience</a> and <a href="/wiki/Sex_differences_in_psychology" title="Sex differences in psychology">psychology</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Sex_differences_in_cognition" title="Sex differences in cognition">Cognition</a></li> <li><a href="/wiki/Sex_differences_in_coping" class="mw-redirect" title="Sex differences in coping">Coping</a></li> <li><a href="/wiki/Gender_and_emotional_expression" title="Gender and emotional expression">Emotional expression</a> <ul><li><a href="/wiki/Gender_differences_in_aggression" class="mw-redirect" title="Gender differences in aggression">Aggression</a></li></ul></li> <li><a href="/wiki/Sex_differences_in_emotional_intelligence" title="Sex differences in emotional intelligence">Emotional intelligence</a></li> <li><a href="/wiki/Sex_differences_in_empathy" class="mw-redirect" title="Sex differences in empathy">Empathy</a> <ul><li><a href="/wiki/Gender_empathy_gap" title="Gender empathy gap">Gender empathy gap</a></li></ul></li> <li><a href="/wiki/Sex_differences_in_intelligence" title="Sex differences in intelligence">Intelligence</a></li> <li><a href="/wiki/Sex_differences_in_memory" title="Sex differences in memory">Memory</a></li> <li><a href="/wiki/Sex_differences_in_narcissism" title="Sex differences in narcissism">Narcissism</a></li> <li><a href="/wiki/Neurosexism" title="Neurosexism">Neurosexism</a></li> <li>Sexuality <ul><li><a class="mw-selflink selflink">age disparity in relationships</a></li> <li><a href="/wiki/Gender_differences_in_sexual_attraction" class="mw-redirect" title="Gender differences in sexual attraction">attraction</a></li> <li><a href="/wiki/Sex_differences_in_sexual_desire" class="mw-redirect" title="Sex differences in sexual desire">desire</a></li> <li><a href="/wiki/Gender_differences_in_sexual_fantasy" class="mw-redirect" title="Gender differences in sexual fantasy">fantasy</a></li> <li><a href="/wiki/Sexual_jealousy" title="Sexual jealousy">jealousy</a></li></ul></li></ul></td> </tr><tr><th class="sidebar-heading" style="border-bottom: 1px #fafafa solid;"> Sociology and society</th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Sex_differences_in_crime" title="Sex differences in crime">Crime</a></li> <li><a href="/wiki/Sex_differences_in_education" title="Sex differences in education">Education</a> <ul><li><a href="/wiki/Sex_differences_in_education_in_the_United_States" title="Sex differences in education in the United States">in the U.S.</a></li></ul></li> <li><a href="/wiki/Gender_inequality" title="Gender inequality">Gender inequality</a></li> <li><a href="/wiki/Male_expendability" title="Male expendability">Greater male expendability</a></li> <li><a href="/wiki/Variability_hypothesis" title="Variability hypothesis">Greater male variability</a></li> <li><a href="/wiki/Sex_differences_in_leadership" title="Sex differences in leadership">Leadership</a></li> <li><a href="/wiki/Gender_and_religion" title="Gender and religion">Religion</a></li> <li><a href="/wiki/Sex_differences_in_social_capital" title="Sex differences in social capital">Social capital</a></li> <li><a href="/wiki/Gender_differences_in_social_support" class="mw-redirect" title="Gender differences in social support">Social support</a></li> <li><a href="/wiki/Gender_paradox" class="mw-redirect" title="Gender paradox">Sociolinguistics</a></li> <li><a href="/wiki/Gender-equality_paradox" title="Gender-equality paradox">Gender-equality paradox</a></li> <li><a href="/wiki/Health_survival_paradox" title="Health survival paradox">Health survival paradox</a></li></ul></td> </tr><tr><td class="sidebar-navbar"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output 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Not to be confused with <a href="/wiki/May_December" title="May December">May December</a> or <a href="/wiki/May_to_December" title="May to December">May to December</a>.</div> In heterosexual <a href="/wiki/Sexual_relationship" class="mw-redirect" title="Sexual relationship">sexual relationships</a>, concepts of age disparity, including what defines an age disparity, have developed over time and vary among societies. Differences in age preferences for mates can stem from partner availability, gender roles, and evolutionary mating strategies, and age preferences in sexual partners may vary cross-culturally. There are also <a href="/wiki/Social_theories" class="mw-redirect" title="Social theories">social theories</a> for age differences in relationships as well as suggested reasons for 'alternative' age-hypogamous relationships. Age-disparate relationships have been documented for most of recorded history and have been regarded with a wide range of attitudes dependent on sociocultural norms and <a href="/wiki/Legal_systems" class="mw-redirect" title="Legal systems">legal systems</a>.<a href="#cite_note-1">[1]</a> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Statistics">Statistics</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=1" title="Edit section: Statistics">edit</a>]</div> <style data-mw-deduplicate="TemplateStyles:r1238864702">.mw-parser-output .bar-chart{margin:0.5em;background-color:var(--background-color-neutral-subtle,#f8f9fa);border:1px solid #c0c0c0}.mw-parser-output .bar-chart caption{font-weight:bold}.mw-parser-output .bar-chart th,.mw-parser-output .bar-chart td{padding:1px;text-align:left}.mw-parser-output .bar-chart th[scope="col"]:not(.bar-chart-label-type){width:15em}.mw-parser-output .bar-chart th[scope="row"]:not(.bar-chart-total){font-weight:normal}.mw-parser-output .bar-chart-bar{height:1.25em;width:40em}.mw-parser-output .bar-chart-bar-line{background-color:#cedff2;height:1.25em;margin:0 0 0 0;z-index:0}.mw-parser-output .bar-chart-bar-comment{font-size:90%;padding-left:1em}.mw-parser-output .bar-chart-bar-numbers{position:relative;top:-1.4em;height:1.25em;padding:0 0 0 2em;z-index:10;width:40em}.mw-parser-output .bar-chart-caption{border-top:1px solid #aaa}@media(min-width:720px){.mw-parser-output .bar-chart-left{float:left;clear:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .bar-chart-right{float:right;clear:right;margin:0.5em 0 0.5em 1em}.mw-parser-output .bar-chart-center{margin:0.5em auto}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .bar-chart-bar-line{background-color:#74497e}}@media screen and (prefers-color-scheme){html.skin-theme-clientpref-os .mw-parser-output .bar-chart-bar-line{background-color:#74497e}}</style> <table class="bar-chart bar-chart-center"> <caption>Age difference in married couples, 2017 US <a href="/wiki/Current_Population_Survey" title="Current Population Survey">Current Population Survey</a><a href="#cite_note-2">[2]</a> </caption> <tbody><tr> <th scope="col" class="bar-chart-label-type">Age difference </th> <th scope="col">Percentage of all married couples </th></tr> <tr> <th scope="row">Husband 20+ years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:0.5em;"></div>1.0</div> </td></tr> <tr> <th scope="row">Husband 15–19 years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:0.7em;"></div>1.6</div> </td></tr> <tr> <th scope="row">Husband 10–14 years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:2.3em;"></div>5.0</div> </td></tr> <tr> <th scope="row">Husband 6–9 years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:5.1em;"></div>11.2</div> </td></tr> <tr> <th scope="row">Husband 4–5 years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:5.8em;"></div>12.8</div> </td></tr> <tr> <th scope="row">Husband 2–3 years older than wife </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:8.9em;"></div>19.6</div> </td></tr> <tr> <th scope="row">Husband and wife within 2 years </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:15.3em;"></div>33.9</div> </td></tr> <tr> <th scope="row">Wife 2–3 years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:3.1em;"></div>6.9</div> </td></tr> <tr> <th scope="row">Wife 4–5 years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:1.5em;"></div>3.4</div> </td></tr> <tr> <th scope="row">Wife 6–9 years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:1.3em;"></div>2.8</div> </td></tr> <tr> <th scope="row">Wife 10–14 years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:0.5em;"></div>1.0</div> </td></tr> <tr> <th scope="row">Wife 15–19 years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:0.1em;"></div>0.3</div> </td></tr> <tr> <th scope="row">Wife 20+ years older than husband </th> <td><div class="bar-chart-bar" style="width: 15em;"><div class="bar-chart-bar-line" style="width:0.2em;"></div>0.4</div> </td></tr> </tbody></table> Data in Australia<a href="#cite_note-3">[3]</a> and the United Kingdom<a href="#cite_note-4">[4]</a> show a similar pattern. Relationships with age disparities have been observed with both men and women as the older or younger partner. In various cultures, older men and younger women often seek one another for sexual or marital relationships.<a href="#cite_note-5">[5]</a> Older women sometimes date younger men as well,<a href="#cite_note-Erotic_Capital-6">[6]</a> and in both cases wealth and apparent <a href="/wiki/Physical_attractiveness" title="Physical attractiveness">physical attractiveness</a> are often relevant.<a href="#cite_note-7">[7]</a> Adolescent boys are generally sexually interested in adolescent girls and women somewhat older than they are.<a href="#cite_note-:13-8">[8]</a> Older men also display an interest in women of their own age.<a href="#cite_note-9">[9]</a> However, research suggests that relationship patterns are more influenced by women's preferences than men's.<a href="#cite_note-:13-8">[8]</a><a href="#cite_note-10">[10]</a><a href="#cite_note-11">[11]</a> Most men marry women younger than they are, with the difference being between two and three years in Spain,<a href="#cite_note-cairn2009-12">[12]</a> the UK reporting the difference to be on average about three years, and the US, two and a half.<a href="#cite_note-13">[13]</a><a href="#cite_note-pew2012-14">[14]</a> The pattern was also confirmed for the rest of the world, with the gap being largest in Africa.<a href="#cite_note-zp-15">[15]</a> However, the number of women marrying younger men is rising. A study released in 2003 by the UK's <a href="/wiki/Office_for_National_Statistics" title="Office for National Statistics">Office for National Statistics</a> concluded that the proportion of women in England and Wales marrying younger men rose from 15% to 26% between 1963 and 1998. Another study also showed a higher divorce rate as the age difference rose for when either the woman was older or the man was older.<a href="#cite_note-16">[16]</a> A 2008 study, however, concluded that the difference is not significant.<a href="#cite_note-ois2-17">[17]</a><a href="#cite_note-18">[18]</a> In August 2010, Michael Dunn of the <a href="/wiki/University_of_Wales_Institute,_Cardiff" class="mw-redirect" title="University of Wales Institute, Cardiff">University of Wales Institute, Cardiff</a>, completed and released the results of a study on age disparity in dating. Dunn concluded that "Not once across all ages and countries ... did females show a preference for males significantly younger than male preferences for females" and that there was a "consistent cross-cultural preference by women for at least same-age or significantly older men". A 2003 <a href="/wiki/AARP" title="AARP">AARP</a> study reported that only 34% of women over 39 years old were dating younger men.<a href="#cite_note-huff-19">[19]</a> A 2011 study suggested that marriage of younger men by women is positively correlated with decreased longevity, particularly for the woman, though married individuals generally still have longer lifespans than singles.<a href="#cite_note-Ian_Sample-20">[20]</a> <div class="mw-heading mw-heading2"><h2 id="Reasons_for_age_disparity">Reasons for age disparity</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=2" title="Edit section: Reasons for age disparity">edit</a>]</div> There are complex and diverse reasons that people enter into age-disparate relationships, and a recent review in the <a href="/wiki/Journal_of_Family_Theory_and_Review" title="Journal of Family Theory and Review">Journal of Family Theory and Review</a> showed vast differences across contexts.<a href="#cite_note-:16-21">[21]</a> Explanations for age disparity usually focus on either the <a href="/wiki/Rational_choice_model" title="Rational choice model">rational choice model</a> or the analysis of demographic trends in a society.<a href="#cite_note-cairn2009-12">[12]</a> The rational choice model suggests that people look for partners who can provide for them in their life (bread-winners); as men earn more as they get older, their partners will therefore prefer older men.<a href="#cite_note-cairn2009-12">[12]</a> This factor is diminishing as more women enter the labor force. The demographic trends are concerned with the <a href="/wiki/Human_sex_ratio" title="Human sex ratio">sex ratio</a> in the society, the <a href="/wiki/Marriage_squeeze" class="mw-redirect" title="Marriage squeeze">marriage squeeze</a>, and migration patterns.<a href="#cite_note-cairn2009-12">[12]</a> Another explanation concerns cultural values: the higher the value placed in having children, the higher the age gap will be.<a href="#cite_note-zp-15">[15]</a> Yet Canadian researchers have found that age-disparate couples are less likely to have children than similarly aged ones.<a href="#cite_note-22">[22]</a> As people have chosen to marry later and remarriage becomes more common, the age differences between couples have increased as well.<a href="#cite_note-cairn2009-12">[12]</a><a href="#cite_note-ois2-17">[17]</a> In a <a href="/wiki/Brown_University" title="Brown University">Brown University</a> study, it has been noted that the social structure of a country determines the age difference between spouses more than any other factor.<a href="#cite_note-Casterline-23">[23]</a> One of the concerns of relationships with age disparities in some cultures is a perceived difference between people of different age ranges. These differences may be sexual, financial or social. <a href="/wiki/Gender_roles" class="mw-redirect" title="Gender roles">Gender roles</a> may complicate this even further. Socially, a society with a difference in wealth distribution between older and younger people may affect the dynamics of the relationship.<a href="#cite_note-sugardaddystereo-24">[24]</a> Although the "<a href="/wiki/Cougar_(slang)" title="Cougar (slang)">cougar</a>" trend, in which older women date much younger men, is often portrayed in the media as a widespread and established facet of modern Western culture, at least one academic study has found the concept to be a "myth". A British psychological study published in <a href="/wiki/Evolution_and_Human_Behavior" title="Evolution and Human Behavior">Evolution and Human Behavior</a> in 2010 concluded that men and women, in general, continued to follow traditional gender roles when searching for mates.<a href="#cite_note-25">[25]</a> The study found that, as supported by other academic studies, most men preferred younger, "attractive" women, while most women, of any age, preferred successful, established men their age or older. The study found very few instances of older women pursuing much younger men and vice versa.<a href="#cite_note-26">[26]</a> The study has been criticized, however, for limiting their results to online dating profiles, which are traditionally not used by those seeking older or younger partners, and for excluding the United States from the study.<a href="#cite_note-27">[27]</a><a href="#cite_note-28">[28]</a><a href="#cite_note-29">[29]</a> <div class="mw-heading mw-heading2"><h2 id="Evolutionary_perspective">Evolutionary perspective</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=3" title="Edit section: Evolutionary perspective">edit</a>]</div> <div class="mw-heading mw-heading3"><h3 id="Evolutionary_approach">Evolutionary approach</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=4" title="Edit section: Evolutionary approach">edit</a>]</div> The evolutionary approach, based on the theories of <a href="/wiki/Charles_Darwin" title="Charles Darwin">Charles Darwin</a>, attempts to explain age disparity in sexual relationships in terms of <a href="/wiki/Natural_selection" title="Natural selection">natural selection</a> and <a href="/wiki/Sexual_selection" title="Sexual selection">sexual selection</a>.<a href="#cite_note-30">[30]</a><a href="#cite_note-31">[31]</a> Within sexual selection, <a href="/wiki/Charles_Darwin" title="Charles Darwin">Darwin</a> identified a further two mechanisms which are important factors in the evolution of sex differences (<a href="/wiki/Sexual_dimorphism" title="Sexual dimorphism">sexual dimorphism</a>): <a href="/wiki/Intrasexual_selection" class="mw-redirect" title="Intrasexual selection">intrasexual selection</a> (involves competition with those of the same sex over access to mates) and <a href="/wiki/Sexual_selection" title="Sexual selection">intersexual choice</a> (discriminative choice of mating partners).<a href="#cite_note-:11-32">[32]</a> <a href="/wiki/Life_history_theory" title="Life history theory">Life history theory</a><a href="#cite_note-33">[33]</a> (that includes <a href="/wiki/Parental_Investment" class="mw-redirect" title="Parental Investment">Parental Investment</a> Theory)<a href="#cite_note-:9-34">[34]</a> provides an explanation for the above mechanisms and strategies adopted by individuals, leading to age disparity in relationships. Life history theory posits that individuals have to divide energy and resources between activities (as energy and resources devoted to one task cannot be used for another task) and this is shaped by natural selection.<a href="#cite_note-35">[35]</a> Parental Investment Theory refers to the value that is placed on a potential mate based on reproductive potential and reproductive investment. The theory predicts that preferred mate choices have evolved to focus on reproductive potential and reproductive investment of members of the opposite sex.<a href="#cite_note-:9-34">[34]</a> This theory predicts both <a href="/wiki/Intrasexual_competition_(disambiguation)" class="mw-redirect mw-disambig" title="Intrasexual competition (disambiguation)">intrasexual</a> selection and intersexual choice due to differences in parental investment; typically there is <a href="/wiki/Competition" title="Competition">competition</a> among members of the lower investing sex (generally males) over the parental investment of the higher investing sex (generally females) who will be more selective in their mate choice. However, human males tend to have more parental investment than do other mammal males (although females still tend to have more parental investment).<a href="#cite_note-:10-36">[36]</a> Thus, both sexes will have to compete and be selective in mate choices. These two theories explain why natural and sexual selection acts slightly differently on the two sexes so that they display different preferences. For example, different age preferences may be a result of sex differences in mate values assigned to the partner's sex at those ages.<a href="#cite_note-:9-34">[34]</a> A study conducted by <a href="/wiki/David_Buss" title="David Buss">David Buss</a> investigated sex differences in mate preferences in 37 cultures with 10,047 participants. In all 37 cultures it was found that males preferred females younger than themselves and females preferred males older than themselves. These age preferences were confirmed in marriage records with males marrying females younger than them.<a href="#cite_note-:8-37">[37]</a> A more recent study has supported these findings, conducted by Schwarz and Hassebrauck.<a href="#cite_note-:3-38">[38]</a> This study used 21,245 participants between 18 and 65 years of age who were not involved in a close relationship. As well as asking participants a number of questions on mate selection criteria, they also had to provide the oldest and youngest partner they would accept. It was found that for all ages males were willing to accept females that are slightly older than they are (on average 4.5 years older), but they accept females considerably younger than their own age (on average 10 years younger). Females demonstrate a complementary pattern, being willing to accept older males (on average 8 years older) and were also willing to accept males younger than themselves (on average 5 years younger). This is somewhat different to our close evolutionary relatives: <a href="/wiki/Chimpanzee" title="Chimpanzee">chimpanzees</a>. Male chimpanzees tend to prefer older females than younger and it is suggested that specific cues of female mate value are very different to humans.<a href="#cite_note-39">[39]</a> <div class="mw-heading mw-heading3"><h3 id="Male_preference_for_younger_females">Male preference for younger females</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=5" title="Edit section: Male preference for younger females">edit</a>]</div> <a href="/wiki/David_Buss" title="David Buss">Buss</a> attributed the male preference for younger females to certain youthful cues. In females, relative youth and apparent physical attractiveness (which males valued more than females did) demonstrated cues for fertility and high reproductive capacity.<a href="#cite_note-:8-37">[37]</a> Buss stated the specific age preference of around 25 years implied that fertility was a stronger ultimate cause of mate preference than reproductive value as data suggested that fertility peaks in females around mid-20s.<a href="#cite_note-:8-37">[37]</a> From a <a href="/wiki/Life_history_theory" title="Life history theory">life history theory</a> perspective, females that display these cues are judged to be more capable of reproductive investment.<a href="#cite_note-:4-40">[40]</a> This notion of age preference due to peak fertility is supported by Kenrick, Keefe, Gabrielidis, and Cornelius's study, which found that although teenage males would accept a mate slightly younger than they are, there was a wider range of preference for ages above their own. Teenage males also report that their ideal mates would be several years older than they are.<a href="#cite_note-41">[41]</a> Buss and Schmitt<a href="#cite_note-:5-42">[42]</a> stress that although long-term mating relationships are common for humans, there are both short-term and long-term mating relationships. Buss and Schmitt provided a Sexual Strategies Theory that describes the two sexes as having evolved distinct psychological mechanisms that underlie the strategies for short- and long-term mating. This theory is directly relevant and compatible with those two already mentioned, <a href="/wiki/Life_history_theory" title="Life history theory">Life History</a> and <a href="/wiki/Parental_investment" title="Parental investment">Parental Investment</a>.<a href="#cite_note-43">[43]</a><a href="#cite_note-:6-44">[44]</a> Males tend to appear oriented towards short-term mating (greater desire for short-term mates than women, prefer larger number of sexual partners, and take less time to consent to sexual intercourse)<a href="#cite_note-:6-44">[44]</a> and this appears to solve a number of <a href="/wiki/Adaptive_behavior" title="Adaptive behavior">adaptive</a> problems including using fewer resources to access a mate.<a href="#cite_note-:5-42">[42]</a> Although there are a number of reproductive advantages to short-term mating, males still pursue long-term mates, and this is due to the possibility of monopolizing a female's lifetime reproductive resources.<a href="#cite_note-:5-42">[42]</a> Consistent with findings, for both short-term and long-term mates, males prefer younger females (reproductively valuable).<a href="#cite_note-:5-42">[42]</a><a href="#cite_note-:7-45">[45]</a> <div class="mw-heading mw-heading3"><h3 id="Female_preference_for_older_males">Female preference for older males</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=6" title="Edit section: Female preference for older males">edit</a>]</div> <table class="wikitable sortable floatright"> <caption>Table 1. Regional singulate mean age of marriage (SMAM) difference between males and females<a href="#cite_note-:0-46">[46]</a> </caption> <tbody><tr> <th>Region</th> <th>SMAM difference </th></tr> <tr> <td>Eastern Africa</td> <td>4.3 </td></tr> <tr> <td>Middle Africa</td> <td>6.0 </td></tr> <tr> <td>Northern Africa</td> <td>4.5 </td></tr> <tr> <td>Western Africa</td> <td>6.6 </td></tr> <tr> <td>Eastern Asia</td> <td>2.4 </td></tr> <tr> <td>South-Central Asia</td> <td>3.7 </td></tr> <tr> <td>South-Eastern Asia</td> <td>2.4 </td></tr> <tr> <td>Western Asia</td> <td>3.5 </td></tr> <tr> <td>Eastern Europe</td> <td>3.1 </td></tr> <tr> <td>Northern Europe</td> <td>2.3 </td></tr> <tr> <td>Southern Europe</td> <td>3.3 </td></tr> <tr> <td>Western Europe</td> <td>2.7 </td></tr> <tr> <td>Caribbean</td> <td>2.9 </td></tr> <tr> <td>Central America</td> <td>2.5 </td></tr> <tr> <td>South America</td> <td>2.9 </td></tr> <tr> <td>Northern America</td> <td>2.3 </td></tr> <tr> <td>Australia/New Zealand</td> <td>2.2 </td></tr></tbody></table> As they are the higher-investing sex, females tend to be more demanding when picking a mate (as predicted by <a href="/wiki/Parental_investment" title="Parental investment">parental investment theory</a>).<a href="#cite_note-:10-36">[36]</a> They also tend to have a more difficult task of evaluating a male's reproductive value accurately based on physical appearance, as age tends to have fewer constraints on a male's reproductive resources.<a href="#cite_note-:4-40">[40]</a> <a href="/wiki/David_Buss" title="David Buss">Buss</a> attributed the older age preference to older males displaying characteristics of high providing-capacity<a href="#cite_note-:8-37">[37]</a> such as status and resources.<a href="#cite_note-:3-38">[38]</a> In terms of short-term and long-term mating, females tend to be oriented towards long-term mating due to the costs incurred from short-term mating.<a href="#cite_note-:5-42">[42]</a> Although some of these costs will be the same for males and females (risk of <a href="/wiki/Sexually_transmitted_infection" title="Sexually transmitted infection">STIs</a> and impairing long-term mate value), the costs for women will be more severe due to paternity uncertainty (cues of multiple mates will be disfavoured by males).<a href="#cite_note-:5-42">[42]</a> In contrast to above, in short-term mating, females will tend to favour males that demonstrate physical attractiveness, as this displays cues of "good genes".<a href="#cite_note-:5-42">[42]</a> Cues of good genes tend to be typically associated with older males<a href="#cite_note-47">[47]</a> such as facial masculinity and cheek-bone prominence.<a href="#cite_note-48">[48]</a> Buss and Schmitt found similar female preferences for long-term mating which supports the notion that, for long-term relationships, females prefer cues of high resource capacity, one of which is age.<a href="#cite_note-:5-42">[42]</a> <a href="/wiki/Dataclysm" title="Dataclysm">Dataclysm</a>, a book by <a href="/wiki/Christian_Rudder" title="Christian Rudder">Christian Rudder</a> based on data from the <a href="/wiki/Dating_site" class="mw-redirect" title="Dating site">dating site</a> <a href="/wiki/OkCupid" title="OkCupid">OkCupid</a>, found that young women tend to find men their own age or slightly older most desirable, e.g. 20-year-old women found 23-year-old men most attractive and 30-year-old women found 30-year-old men most attractive.<a href="#cite_note-:17-49">[49]</a> In contrast, men displayed a consistent preference for women in their early 20s, e.g. 50-year-old men found 22-year-old women most attractive.<a href="#cite_note-:17-49">[49]</a> <div class="mw-heading mw-heading2"><h2 id="Cross-cultural_differences">Cross-cultural differences</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=7" title="Edit section: Cross-cultural differences">edit</a>]</div> Cross-culturally, research has consistently supported the trend in which males prefer to mate with younger females, and females with older males.<a href="#cite_note-:11-32">[32]</a> In a cross-cultural study that covered 37 countries,<a href="#cite_note-50">[50]</a> preferences for age differences were measured and research supported the theory that people prefer to marry close to the age when female fertility is at its highest (24–25 years). Analysing the results further, cross culturally, the average age females prefer to marry is 25.4 years old, and they prefer a mate 3.4 years older than themselves, therefore their preferred mate would be aged 28.8 years of age. Males however prefer to marry when they are 27.5 years old, and a female to be 2.7 years younger than themselves, yielding their preferred mate to be 24.8 years old. The results from the study therefore show that the mean preferred marriage age difference (3.04 years averaging male and female preferred age) corresponds very closely with the actual mean marriage age difference (2.99). The preferred age of females is 24.8 years and the actual average age females marry is 25.3 years old (and 28.2 for males) which actually falls directly on the age where females are most <a href="/wiki/Female_fertility" class="mw-redirect" title="Female fertility">fertile</a>, however, this assumes that people are having children immediately after marrying. Moreover, these patterns fit many proposed explanations for age differences: evolutionarily adapted <a href="/wiki/Mating" title="Mating">mating</a> preferences, socialisation, and gendered economic differences.<a href="#cite_note-:16-21">[21]</a> The <a href="/wiki/United_Nations_Statistical_Commission" title="United Nations Statistical Commission">United Nations</a> Marriage Statistics Department measures the singulate mean age at marriage (SMAM) difference, the difference in average age at first marriage between men and women, across the main regions in the world (refer to Table. 1).<a href="#cite_note-:0-46">[46]</a> <div class="mw-heading mw-heading3"><h3 id="Larger_than_average_age-gaps">Larger than average age-gaps</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=8" title="Edit section: Larger than average age-gaps">edit</a>]</div> <table class="wikitable sortable floatright" style="width: 20%; height: 40"> <caption>Table 2. Countries with largest marital age differences<a href="#cite_note-:0-46">[46]</a> </caption> <tbody><tr> <th>Country </th> <th>SMAM difference </th> <th><a href="/wiki/Legal_status_of_polygamy" class="mw-redirect" title="Legal status of polygamy">Legal status of polygamy</a> </th></tr> <tr> <td>Cameroon a </td> <td>6.5 </td> <td>Polygamous </td></tr> <tr> <td>Chad </td> <td>6.1 </td> <td>Polygamous </td></tr> <tr> <td>Rep. of Congo </td> <td>8.6 </td> <td>Polygamous </td></tr> <tr> <td>Dem. Rep. of Congo </td> <td>8.2 </td> <td>Illegal, but practiced </td></tr> <tr> <td>Zambia </td> <td>3.1 </td> <td>Polygamous </td></tr> <tr> <td>Sudan </td> <td>6.4 </td> <td>Polygamous </td></tr> <tr> <td>Burkina Faso a </td> <td>8.6 </td> <td>Polygamous </td></tr> <tr> <td>Côte d'Ivoire </td> <td>7.2 </td> <td>No Longer Practiced </td></tr> <tr> <td>Gambia </td> <td>9.2 </td> <td>Polygamous </td></tr> <tr> <td>Guinea a </td> <td>7.3 </td> <td>Illegal but practiced </td></tr> <tr> <td>Liberia </td> <td>6.5 </td> <td>Not Criminalised </td></tr> <tr> <td>Mali </td> <td>7.5 </td> <td>Polygamous </td></tr> <tr> <td>Mauritania </td> <td>7.7 </td> <td>Polygamous </td></tr> <tr> <td>Niger </td> <td>6.3 </td> <td>Polygamous </td></tr> <tr> <td>Nigeria </td> <td>6.9 </td> <td>Polygamous </td></tr> <tr> <td>Senegal </td> <td>8.1 </td> <td>Polygamous </td></tr> <tr> <td>Afghanistan </td> <td>7.5 </td> <td>Polygamous </td></tr> <tr> <td>Bangladesh </td> <td>6.8 </td> <td>Not Criminalised </td></tr> <tr> <td>Montserrat b </td> <td>8.3 </td> <td>Unknown </td></tr> <tr> <td>Nauru </td> <td>7.3 </td> <td>Prohibited </td></tr> <tr> <td>Mozambique </td> <td>8.6 </td> <td>Not Criminalised </td></tr></tbody></table> However, in some regions of the world there is a substantially larger age gap between marriage partners in that males are much older than their wife (or wives) or women are much younger than their husband (or husbands). A theory that can explain this finding from an evolutionary perspective is the <a href="/wiki/Parasite-stress_theory" title="Parasite-stress theory">parasite-stress theory</a> which explains that an increase of infectious disease can cause humans to evolve selectively according to these pressures. Evidence also shows that as disease risk gets higher, it puts a level of stress on mating selection and increases the use of <a href="/wiki/Polygamy" title="Polygamy">polygamy</a>.<a href="#cite_note-:1-51">[51]</a> Table 2 shows that 17 of the 20 countries with the largest age-gaps between spouses practice <a href="/wiki/Polygyny" title="Polygyny">polygyny</a>, and that males range from 6.1 to 9.2 years older than their partners; 16 of the 20 countries with the largest age-gaps are in Africa. In regions such as Sub-Saharan Africa the use of polygyny is commonly practiced as a consequence of high <a href="/wiki/Sex_ratio_in_humans" class="mw-redirect" title="Sex ratio in humans">sex-ratios</a> (more males per 100 females) and passing on <a href="/wiki/Heterozygous" class="mw-redirect" title="Heterozygous">heterozygous</a> (diverse) genetics from different females to offspring.<a href="#cite_note-:14-52">[52]</a> When disease is prevalent, if a male is producing offspring with a more diverse range of alleles, offspring will be more likely to withstand mortality from disease and continue the family line. Another reason that polygynous communities have larger age-gaps between spouses is that <a href="/wiki/Intrasexual_selection" class="mw-redirect" title="Intrasexual selection">intrasexual</a> competition for females increases as fewer females remain on the marriage market (with males having more than one wife each), therefore the competitive advantage values younger females due to their higher reproductive value.<a href="#cite_note-53">[53]</a> As the competition for younger women becomes more common, the age in females' first marriage lower as older men seek younger and younger females. <div class="mw-heading mw-heading3"><h3 id="Smaller_than_average_age-gaps">Smaller than average age-gaps</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=9" title="Edit section: Smaller than average age-gaps">edit</a>]</div> In Western societies such as the US and Europe, there is a trend of smaller age-gaps between spouses, reaching its peak average in Southern Europe of 3.3 years. Using the same pathogen-stress model, there is a lower prevalence of disease in these economically developed areas, and therefore a reduced stress on reproduction for survival. Additionally, it is common to see monogamous relationships widely in more modern societies as there are more women in the marriage market, and polygamy is illegal throughout most industrialized countries, while in less developed countries it is more likely to be accepted (polygamy is most common in the "polygamy belt" region in West and Central Africa).<a href="#cite_note-54">[54]</a> The average age difference between husband and wife is 6.4 years in polygamous countries, compared to only 2.8 years in monogamous countries.<a href="#cite_note-55">[55]</a> As access to education increases worldwide, the age of marriage increases with it, with more of the youth staying in education for longer. The mean age of marriage in Europe is well above 25, and averaging at 30 in Nordic countries, however this may also be due to the increase of cohabitation in European countries. In some countries in Europe such as France, Netherlands, United Kingdom, Norway, Estonia, Finland and Denmark, 20–30% of women aged 20–34 are cohabiting as opposed to legally marrying.<a href="#cite_note-:12-56">[56]</a> In addition to this with the gender pay gap decreasing, more women work equal hours (average of 40 hours in Europe and the US) to males and look less for males with financial resources.<a href="#cite_note-:12-56">[56]</a> In regions such as the Caribbean and Latin America there is a lower SMAM difference than expected; however, there are also a large proportion of partners living in consensual unions; 24% in Brazil, 20% in Nicaragua and 18% in Dominican Republic.<a href="#cite_note-57">[57]</a> A 2011 study suggested that age disparity in marriage is positively correlated with decreased longevity, particularly for women, though married people still have longer lifespans than singles.<a href="#cite_note-Ian_Sample-20">[20]</a> <div class="mw-heading mw-heading2"><h2 id="Social_perspectives">Social perspectives</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=10" title="Edit section: Social perspectives">edit</a>]</div> <div class="mw-heading mw-heading3"><h3 id="Social_structural_origin_theory">Social structural origin theory</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=11" title="Edit section: Social structural origin theory">edit</a>]</div> Social structural origin theory argues that the underlying cause of sex-differentiated behaviour is the concentration of men and women in differing roles in society. It has been argued that a reason gender roles are so prevalent in society is that the expectations of gender roles can become internalised in a person's self-concept and personality.<a href="#cite_note-58">[58]</a> In a <a href="/wiki/Brown_University" title="Brown University">Brown University</a> study, it has been noted that the social structure of a country determines the age difference between spouses more than any other factor, challenging evolutionary explanations.<a href="#cite_note-59">[59]</a> In regard to mate selection, social structural theory supports the idea that individuals aim to maximise what they can provide in the relationship in an environment that is limiting their utilities through expected gender roles in society and marriage.<a href="#cite_note-:15-60">[60]</a> It is thought that a trade-off or equilibrium is reached, in regard to what each gender brings to a partnership, and that this equilibrium is most likely to be reached with a trade-off of ages when selecting a mate.<a href="#cite_note-61">[61]</a> Women trade youth and physical attractiveness for economic security in their male partner.<a href="#cite_note-62">[62]</a> This economic approach to choosing a partner ultimately depends on the marital or family system that is adopted by society. Women and men tend to seek a partner that will fit in with their society's sexual division of labour. For example, a marital system based on males being the provider and females the domestic worker, favours an age gap in the relationship. An older male is more likely to have more resources to provide to the family.<a href="#cite_note-:15-60">[60]</a> <div class="mw-heading mw-heading3"><h3 id="The_rational_choice_model">The rational choice model</h3>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=12" title="Edit section: The rational choice model">edit</a>]</div> The <a href="/wiki/Rational_choice" class="mw-redirect" title="Rational choice">rational choice</a> model also suggests that people look for partners who can provide for them in their life (bread-winners); as men traditionally earn more as they get older, women will therefore prefer older men.<a href="#cite_note-:20-63">[63]</a> This factor is diminishing as more women enter the labour force and the <a href="/wiki/Gender_pay_gap" title="Gender pay gap">gender pay gap</a> decreases.<a href="#cite_note-:20-63">[63]</a> <div class="mw-heading mw-heading2"><h2 id="Age-hypogamy_in_relationships">Age-hypogamy in relationships</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=13" title="Edit section: Age-hypogamy in relationships">edit</a>]</div> Age-hypogamy defines a relationship where the woman is the older partner, the opposite of this being age-<a href="/wiki/Hypergamy" title="Hypergamy">hypergamy</a>.<a href="#cite_note-:2-64">[64]</a> Marriage between partners of roughly similar age is known as "age <a href="/wiki/Homogamy_(sociology)" title="Homogamy (sociology)">homogamy</a>".<a href="#cite_note-cairn20092-65">[65]</a> Older female–younger male relationships are increasingly researched by social scientists.<a href="#cite_note-:2-64">[64]</a><a href="#cite_note-66">[66]</a><a href="#cite_note-67">[67]</a><a href="#cite_note-chasingcougar-68">[68]</a><a href="#cite_note-69">[69]</a> Slang terms such as "cougar" have been used in films, TV shows and the media to depict older females with younger male mates. The picture often displays a stereotypical pairing of a divorced, middle-aged, white, affluent female dating a younger male with the relationship taking the form of a non-commitment arrangement between the partners.<a href="#cite_note-kak2012-70">[70]</a> Although age-hypogamous relationships have historically been very infrequent, recent US census data has shown an increase in age-hypogamous relationships from 6.4% in 2000 to 7.7% in 2012.<a href="#cite_note-71">[71]</a> There may be many reasons why age-hypogamous relationships have been less frequent until recently. Sexual double standards in society, in particular, may account for their rarity.<a href="#cite_note-:2-64">[64]</a> In many contexts, aging in women is seen to be associated with decreased sex appeal and dating potential.<a href="#cite_note-72">[72]</a> There is debate in the literature as to what leads to age-hypogamy in sexual relationships. A number of variables have been argued to influence the likelihood of women entering into an age-hypogamous relationship, such as racial or ethnic background, level of education, income, marital status, conservatism, age, and number of sexual partners.<a href="#cite_note-:2-64">[64]</a> For example, US Census data show an exaggerated sex ratio in African American communities, whereby there were 100 African American women for every 89 African American men.<a href="#cite_note-73">[73]</a> It was shown that African American women were more likely to be in age-hypogamous or age-hypergamous marriages in comparison with White American women.<a href="#cite_note-74">[74]</a> However, more recent evidence has found that women belonging to racial categories besides African American or White were more likely to sleep with younger men,<a href="#cite_note-:2-64">[64]</a> showing that it is still unclear which, if any, ethnic groups are more likely to have age-hypogamous relationships. <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Emmanuel_et_Brigitte_Macron_(cropped).jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Emmanuel_et_Brigitte_Macron_%28cropped%29.jpg/220px-Emmanuel_et_Brigitte_Macron_%28cropped%29.jpg" decoding="async" width="220" height="166" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Emmanuel_et_Brigitte_Macron_%28cropped%29.jpg/330px-Emmanuel_et_Brigitte_Macron_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/c/c9/Emmanuel_et_Brigitte_Macron_%28cropped%29.jpg 2x" data-file-width="440" data-file-height="332" /></a><figcaption><a href="/wiki/French_President" class="mw-redirect" title="French President">French President</a> <a href="/wiki/Emmanuel_Macron" title="Emmanuel Macron">Emmanuel Macron</a> and his wife <a href="/wiki/Brigitte_Macron" title="Brigitte Macron">Brigitte</a>. The couple married in 2007; at the time he was 30 years old and she 54, with a 24-year age-hypogamous gap between the pair. </figcaption></figure> Another example illustrating the varying literature surrounding age-hypogamous relationships is research indicating that a woman's marital status can influence her likelihood of engaging in age-hypogamous relationships. Married women are less likely to be partnered with younger men than are non-married women.<a href="#cite_note-75">[75]</a> More recent findings suggest that previously married women are more likely to engage in an age-hypogamous sexual relationships than are women who are married or who have never been married.<a href="#cite_note-:2-64">[64]</a> Despite social views depicting age-hypogamous relationships as short lived, a 2008 study from <a href="/wiki/Psychology_of_Women_Quarterly" title="Psychology of Women Quarterly">Psychology of Women Quarterly</a> has found that women in age-hypogamous relationships are more satisfied and the most committed in their relationships than are younger women or similarly aged partners.<a href="#cite_note-76">[76]</a><a href="#cite_note-leh2008-77">[77]</a> Similarly, a 2023 study found that women with younger male partners scored higher in emotional intelligence, sexual self-efficacy, and subjective happiness.<a href="#cite_note-78">[78]</a> It has also been suggested that male partners engaging in age-hypogamous relationships are choosing beauty over age. A 2001 study found that when shown pictures of women of ages ranging from 20 to 45 with different levels of apparent attractiveness, regardless of age, men chose the more "attractive" individuals as long-term partners.<a href="#cite_note-79">[79]</a> <div class="mw-heading mw-heading2"><h2 id=""Half-your-age-plus-seven"_rule">"Half-your-age-plus-seven" rule</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=14" title="Edit section: "Half-your-age-plus-seven" rule">edit</a>]</div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Half-age-plus-seven-relationship-rule.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Half-age-plus-seven-relationship-rule.svg/220px-Half-age-plus-seven-relationship-rule.svg.png" decoding="async" width="220" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Half-age-plus-seven-relationship-rule.svg/330px-Half-age-plus-seven-relationship-rule.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/17/Half-age-plus-seven-relationship-rule.svg/440px-Half-age-plus-seven-relationship-rule.svg.png 2x" data-file-width="755" data-file-height="798" /></a><figcaption>Graph of the half-age-plus-seven rule</figcaption></figure> One "<a href="/wiki/Rule_of_thumb" title="Rule of thumb">rule of thumb</a>" to determine whether an age difference is "socially acceptable" holds that a person should never date someone whose age is less than half their own plus seven years.<a href="#cite_note-didonato-80">[80]</a><a href="#cite_note-Rodale-81">[81]</a><a href="#cite_note-82">[82]</a><a href="#cite_note-83">[83]</a> According to this rule, a 28-year-old would date no one younger than 21 (half of 28, plus 7) and a 50-year-old would date no one younger than 32 (half of 50, plus 7). Although the provenance of the rule is unclear, it is sometimes said to have originated in France.<a href="#cite_note-Rodale-81">[81]</a> The rule appears in <a href="/wiki/John_Fox_Jr." title="John Fox Jr.">John Fox Jr.</a>'s 1903 novel <a href="/wiki/The_Little_Shepherd_of_Kingdom_Come_(novel)" title="The Little Shepherd of Kingdom Come (novel)">The Little Shepherd of Kingdom Come</a>,<a href="#cite_note-Fox1903-84">[84]</a> in American newspapers in 1931 attributed to <a href="/wiki/Maurice_Chevalier" title="Maurice Chevalier">Maurice Chevalier</a>,<a href="#cite_note-85">[85]</a> and in <a href="/wiki/The_Autobiography_of_Malcolm_X" title="The Autobiography of Malcolm X">The Autobiography of Malcolm X</a>, attributed to <a href="/wiki/Elijah_Muhammad" title="Elijah Muhammad">Elijah Muhammad</a>.<a href="#cite_note-86">[86]</a> In many early sources, the rule was primarily presented as a formula to calculate the ideal age of a female partner at the beginning of a relationship. <a href="/wiki/Frederick_Locker-Lampson" title="Frederick Locker-Lampson">Frederick Locker-Lampson</a>'s Patchwork from 1879 states the opinion "A wife should be half the age of her husband with seven years added."<a href="#cite_note-87">[87]</a> <a href="/wiki/Max_O%27Rell" title="Max O'Rell">Max O'Rell</a>'s Her Royal Highness Woman from 1901 gives the rule in the format "A man should marry a woman half his age, plus seven."<a href="#cite_note-88">[88]</a> A similar interpretation is also present in the 1951 play The Moon Is Blue by <a href="/wiki/F._Hugh_Herbert" title="F. Hugh Herbert">F. Hugh Herbert</a>: "Haven't you ever heard that the girl is supposed to be half the man's age, plus seven?"<a href="#cite_note-89">[89]</a> Despite this, there are contemporary sources indicating that a woman falling below this target age was still considered inappropriate, or otherwise a hindrance to the relationship. For example, in <a href="/wiki/John_Fox_Jr." title="John Fox Jr.">John Fox Jr.</a>'s aforementioned 1903 novel <a href="/wiki/The_Little_Shepherd_of_Kingdom_Come_(novel)" title="The Little Shepherd of Kingdom Come (novel)">The Little Shepherd of Kingdom Come</a>, the rule is cited immediately before a woman is described as being "too young [for her potential partner], and she can wait."<a href="#cite_note-Fox1903-84">[84]</a> A 2000 study found that the rule was fairly accurate at describing the minimum age of a woman that a man would marry or date. However, the rule was not found to be descriptive of the minimum age of a man that a woman would marry or date, nor (by reversing the formula) of the maximum age that either sex would marry or date.<a href="#cite_note-didonato-80">[80]</a> This rule implies that the younger individual should be at least 14 years older than the difference between the two ages<a href="#cite_note-90">[90]</a> and the older individual should be at least 14 years older than twice their age difference.<a href="#cite_note-91">[91]</a> For example, a couple with a 10-year age gap must be aged at least 24 and 34 respectively for the rule to be met. <div class="mw-heading mw-heading2"><h2 id="Slang_terms">Slang terms</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=15" title="Edit section: Slang terms">edit</a>]</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"Toy boy" redirects here. For other uses, see <a href="/wiki/Toy_boy_(disambiguation)" class="mw-redirect mw-disambig" title="Toy boy (disambiguation)">Toy boy (disambiguation)</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/List_of_age-related_terms_with_negative_connotations" title="List of age-related terms with negative connotations">List of age-related terms with negative connotations</a></div> Partner age disparities are typically met with some disdain in industrialized nations,<a href="#cite_note-92">[92]</a><a href="#cite_note-leh2008-77">[77]</a><a href="#cite_note-93">[93]</a><a href="#cite_note-94">[94]</a> and there are various derogatory terms for participants in these relationships. In English-speaking countries, where financial disparity and an exchange of money for companionship is perceived as central to these relationships, the elder (presumably more wealthy) partner is often called a "sugar daddy"<a href="#cite_note-sugardaddystereo-24">[24]</a> or "<a href="/wiki/Sugar_dating" title="Sugar dating">sugar mama</a>",<a href="#cite_note-95">[95]</a> and the younger may be called a "<a href="/wiki/Sugar_baby" class="mw-redirect" title="Sugar baby">sugar baby</a>".<a href="#cite_note-96">[96]</a> In extreme cases, a person who marries a wealthy older partner – especially one in poor health – may be called a "<a href="/wiki/Gold_digger" title="Gold digger">gold digger</a>".<a href="#cite_note-97">[97]</a><a href="#cite_note-98">[98]</a> An attractive younger woman pursued by a wealthy man who is perceived as wanting her only <a href="/wiki/Lookism" title="Lookism">for her appearance</a> or as a <a href="/wiki/Status_symbol" title="Status symbol">status symbol</a> may be called a <a href="/wiki/Trophy_wife" title="Trophy wife">trophy wife</a>.<a href="#cite_note-99">[99]</a><a href="#cite_note-100">[100]</a> The opposite term, "trophy husband", does not have an agreed-upon use, but is becoming more common: some use the term to refer to the attractive stay-at-home husband of a much more famous man or woman; others use it to refer to the husband of a trophy wife, as he is her trophy due to his wealth and prestige.<a href="#cite_note-101">[101]</a> In the latter case, the term trophy is broadened to include any substantial difference in power originating from physical appearance, wealth, or status. The trophy label is often perceived as objectifying the partner, with or without the partner's implicit consent.[<a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a>] Where the primary perceived reason for a relationship with a significant age difference is sexual, many gender-specific terms have become popular in English-speaking cultures. A woman of middle to elderly age who pursues younger men is a <a href="/wiki/Cougar_(slang)" title="Cougar (slang)">cougar</a><a href="#cite_note-kak2012-70">[70]</a><a href="#cite_note-chasingcougar-68">[68]</a><a href="#cite_note-:2-64">[64]</a> or <a href="https://en.wiktionary.org/wiki/puma" class="extiw" title="wikt:puma">puma</a>, and a man in a relationship with an older woman is often called a boytoy,<a href="#cite_note-102">[102]</a> toyboy,<a href="#cite_note-103">[103]</a><a href="#cite_note-104">[104]</a> <a href="/wiki/Himbo" title="Himbo">himbo</a>,<a href="#cite_note-105">[105]</a><a href="#cite_note-106">[106]</a> <a href="https://en.wiktionary.org/wiki/gigolo" class="extiw" title="wikt:gigolo">gigolo</a>,<a href="#cite_note-107">[107]</a> or <a href="https://en.wiktionary.org/wiki/cub" class="extiw" title="wikt:cub">cub</a>. In reverse, the terms rhino,[<a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a>] trout<a href="#cite_note-108">[108]</a> and <a href="https://en.wiktionary.org/wiki/manther" class="extiw" title="wikt:manther">manther</a> (a play on the panther term for women) are generally used to label an older man pursuing younger women, and the younger woman in such a relationship may be called a kitten[<a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a>] or <a href="https://en.wiktionary.org/wiki/panther" class="extiw" title="wikt:panther">panther</a>. If the woman is extremely young, the man may be labelled a <a href="https://en.wiktionary.org/wiki/cradle-snatcher" class="extiw" title="wikt:cradle-snatcher">cradle-snatcher</a> (UK)<a href="#cite_note-109">[109]</a> or <a href="https://en.wiktionary.org/wiki/cradle_robber" class="extiw" title="wikt:cradle robber">cradle robber</a> (US)<a href="#cite_note-110">[110]</a><a href="#cite_note-111">[111]</a> In gay slang, the term <a href="/wiki/Chickenhawk_(gay_slang)" title="Chickenhawk (gay slang)">chickenhawk</a> may be used.<a href="#cite_note-112">[112]</a> If the much-younger target of affections is not of the legal age of consent or appears as such, the term <a href="/wiki/Jailbait" title="Jailbait">jailbait</a> may be applied to them, cautioning older partners against involvement.<a href="#cite_note-113">[113]</a> An older term for any licentious or lascivious man is a <a href="https://en.wiktionary.org/wiki/lecher" class="extiw" title="wikt:lecher">lecher</a>.<a href="#cite_note-114">[114]</a> That term and its shortening, lech, have come to commonly describe an elderly man who makes passes at much younger women.<a href="#cite_note-115">[115]</a> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=16" title="Edit section: See also">edit</a>]</div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><a href="/wiki/File:Bisexuality_symbol_(bold,_color).svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Bisexuality_symbol_%28bold%2C_color%29.svg/32px-Bisexuality_symbol_%28bold%2C_color%29.svg.png" decoding="async" width="32" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/26/Bisexuality_symbol_%28bold%2C_color%29.svg/48px-Bisexuality_symbol_%28bold%2C_color%29.svg.png 1.5x, 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<li><a href="/wiki/Sexual_selection_in_humans" title="Sexual selection in humans">Sexual selection in humans</a></li></ul> <div style="clear:both;" class=""></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=17" title="Edit section: References">edit</a>]</div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">^</a> <style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output 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BBC News. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170913044832/http://news.bbc.co.uk/1/hi/health/1410495.stm">Archived</a> from the original on 13 September 2017. 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Here's why I want to share the truth online"</a>. <a href="/wiki/Insider_(website)" class="mw-redirect" title="Insider (website)">Insider</a>. <a rel="nofollow" class="external text" href="https://ghostarchive.org/archive/20231027001042/https://www.insider.com/sugar-baby-lifestyle-reality-misconceptions-2023-9">Archived</a> from the original on 27 October 2023. Retrieved 26 October 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Insider&rft.atitle=I%27ve+been+a+sugar+baby+for+7+years%2C+but+my+life+is+not+what+people+assume.+Here%27s+why+I+want+to+share+the+truth+online.&rft.date=2023-10-09&rft.aulast=Pearcy&rft.aufirst=Aimee&rft_id=https%3A%2F%2Fwww.insider.com%2Fsugar-baby-lifestyle-reality-misconceptions-2023-9&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-97"><a href="#cite_ref-97">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMalhotra2022" class="citation web cs1">Malhotra, Raghu (22 July 2022). <a rel="nofollow" class="external text" href="https://indianexpress.com/article/explained/explained-who-gold-digger-derogatory-expression-describe-a-certain-kind-of-greedy-woman-8042032/">"Explained: Who is a gold digger — the derogatory expression used to describe a certain kind of greedy woman?"</a>. <a href="/wiki/The_Indian_Express" title="The Indian Express">The Indian Express</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220827024220/https://indianexpress.com/article/explained/explained-who-gold-digger-derogatory-expression-describe-a-certain-kind-of-greedy-woman-8042032/">Archived</a> from the original on 27 August 2022. Retrieved 26 October 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Indian+Express&rft.atitle=Explained%3A+Who+is+a+gold+digger+%E2%80%94+the+derogatory+expression+used+to+describe+a+certain+kind+of+greedy+woman%3F&rft.date=2022-07-22&rft.aulast=Malhotra&rft.aufirst=Raghu&rft_id=https%3A%2F%2Findianexpress.com%2Farticle%2Fexplained%2Fexplained-who-gold-digger-derogatory-expression-describe-a-certain-kind-of-greedy-woman-8042032%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-98"><a href="#cite_ref-98">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAllen1995" class="citation book cs1">Allen, Irving Lewis (1995). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=j41z0yeKbeIC&pg=PA80">The City in Slang: New York Life and Popular Speech</a>. London: <a href="/wiki/Oxford_University_Press" title="Oxford University Press">Oxford University Press</a>. p. 80. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780195357769" title="Special:BookSources/9780195357769"><bdi>9780195357769</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+City+in+Slang%3A+New+York+Life+and+Popular+Speech&rft.place=London&rft.pages=80&rft.pub=Oxford+University+Press&rft.date=1995&rft.isbn=9780195357769&rft.aulast=Allen&rft.aufirst=Irving+Lewis&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dj41z0yeKbeIC%26pg%3DPA80&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-99"><a href="#cite_ref-99">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSingal2014" class="citation web cs1">Singal, Jesse (18 June 2014). <a rel="nofollow" class="external text" href="https://www.thecut.com/2014/06/trophy-wives-may-not-really-be-a-thing.html">"Trophy Wives May Not Really Be a Thing"</a>. <a href="/wiki/The_Cut_(website)" class="mw-redirect" title="The Cut (website)">The Cut</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20230101095625/https://www.thecut.com/2014/06/trophy-wives-may-not-really-be-a-thing.html">Archived</a> from the original on 1 January 2023. Retrieved 26 October 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Cut&rft.atitle=Trophy+Wives+May+Not+Really+Be+a+Thing&rft.date=2014-06-18&rft.aulast=Singal&rft.aufirst=Jesse&rft_id=https%3A%2F%2Fwww.thecut.com%2F2014%2F06%2Ftrophy-wives-may-not-really-be-a-thing.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-100"><a href="#cite_ref-100">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://abcnews.go.com/US/story?id=3372209&page=1">"Blond and Beautiful? What Really Makes a 'Trophy Wife'"</a>. <a href="/wiki/ABC_News_(United_States)" title="ABC News (United States)">ABC News</a>. 12 July 2007. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220807205814/https://abcnews.go.com/US/story?id=3372209&page=1">Archived</a> from the original on 7 August 2022. 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London: Routledge. p. 286. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781317372523" title="Special:BookSources/9781317372523"><bdi>9781317372523</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+New+Partridge+Dictionary+of+Slang+and+Unconventional+English&rft.place=London&rft.pages=286&rft.edition=second&rft.pub=Routledge&rft.date=2013&rft.isbn=9781317372523&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DbbcBCgAAQBAJ%26pg%3DPA286&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-103"><a href="#cite_ref-103">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDorking2019" class="citation web cs1">Dorking, Marie Claire (18 November 2019). <a rel="nofollow" class="external text" href="https://uk.style.yahoo.com/is-the-term-toyboy-sexist-104614673.html">"Is the term 'toyboy' sexist?"</a>. <a href="/wiki/Yahoo!_Life" class="mw-redirect" title="Yahoo! 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London: <a href="/wiki/OUP_Oxford" class="mw-redirect" title="OUP Oxford">OUP Oxford</a>. p. 335. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780199232055" title="Special:BookSources/9780199232055"><bdi>9780199232055</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Oxford+Dictionary+of+Modern+Slang&rft.place=London&rft.pages=335&rft.edition=reprint&rft.pub=OUP+Oxford&rft.date=2010&rft.isbn=9780199232055&rft.aulast=Ayto&rft.aufirst=John&rft.au=Simpson%2C+John&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DKT-cAQAAQBAJ%26pg%3DPA335&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-105"><a href="#cite_ref-105">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDalzell2018" class="citation book cs1">Dalzell, Tom, ed. (2018). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=qX5aDwAAQBAJ&pg=PA2013-IA93">The Routledge Dictionary of Modern American Slang and Unconventional English</a> (second ed.). London: Routledge. p. 2013. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781351765206" title="Special:BookSources/9781351765206"><bdi>9781351765206</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Routledge+Dictionary+of+Modern+American+Slang+and+Unconventional+English&rft.place=London&rft.pages=2013&rft.edition=second&rft.pub=Routledge&rft.date=2018&rft.isbn=9781351765206&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DqX5aDwAAQBAJ%26pg%3DPA2013-IA93&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-106"><a href="#cite_ref-106">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLefler2011" class="citation book cs1">Lefler, Anna (2011). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=TefrDQAAQBAJ&pg=PT96">The Chicktionary: From A-line to Z-snap, the words every woman should know</a>. New York: <a href="/wiki/Simon_and_Schuster" class="mw-redirect" title="Simon and Schuster">Simon and Schuster</a>. p. 96. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781440531224" title="Special:BookSources/9781440531224"><bdi>9781440531224</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Chicktionary%3A+From+A-line+to+Z-snap%2C+the+words+every+woman+should+know&rft.place=New+York&rft.pages=96&rft.pub=Simon+and+Schuster&rft.date=2011&rft.isbn=9781440531224&rft.aulast=Lefler&rft.aufirst=Anna&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DTefrDQAAQBAJ%26pg%3DPT96&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-107"><a href="#cite_ref-107">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFerber1922" class="citation magazine cs1">Ferber, Edna (November 1922). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=VngxAQAAMAAJ&pg=RA10-PA7">"Gigolo"</a>. <a href="/wiki/Woman%27s_Home_Companion" title="Woman's Home Companion">Woman's Home Companion</a>. 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Retrieved 26 October 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Dictionary.com&rft.atitle=Mrs.+Robinson&rft_id=https%3A%2F%2Fwww.dictionary.com%2Fe%2Ffictional-characters%2Fmrs-robinson%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-111"><a href="#cite_ref-111">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFVictorDalzell2007" class="citation book cs1">Victor, Terry; Dalzell, Tom (2007). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=GIuEAgAAQBAJ&pg=PA169">The Concise New Partridge Dictionary of Slang and Unconventional English</a>. London: Routledge. p. 160. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781134615346" title="Special:BookSources/9781134615346"><bdi>9781134615346</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Concise+New+Partridge+Dictionary+of+Slang+and+Unconventional+English&rft.place=London&rft.pages=160&rft.pub=Routledge&rft.date=2007&rft.isbn=9781134615346&rft.aulast=Victor&rft.aufirst=Terry&rft.au=Dalzell%2C+Tom&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DGIuEAgAAQBAJ%26pg%3DPA169&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-112"><a href="#cite_ref-112">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://www.washingtonpost.com/archive/politics/1981/03/18/policing-boy-prostitution/6ddca7fd-38cf-43ce-bf8d-aa02f04e08c8/">"Policing Boy Prostitution"</a>. <a href="/wiki/Washington_Post" class="mw-redirect" title="Washington Post">Washington Post</a>. 18 March 1981. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20200825085624/https://www.washingtonpost.com/archive/politics/1981/03/18/policing-boy-prostitution/6ddca7fd-38cf-43ce-bf8d-aa02f04e08c8/">Archived</a> from the original on 25 August 2020. Retrieved 26 October 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Washington+Post&rft.atitle=Policing+Boy+Prostitution&rft.date=1981-03-18&rft_id=https%3A%2F%2Fwww.washingtonpost.com%2Farchive%2Fpolitics%2F1981%2F03%2F18%2Fpolicing-boy-prostitution%2F6ddca7fd-38cf-43ce-bf8d-aa02f04e08c8%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-113"><a href="#cite_ref-113">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFThorne2014" class="citation book cs1">Thorne, Tony (2014). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=3_6oRAJSHP4C&pg=PA235">Dictionary of Contemporary Slang</a> (fourth ed.). London: Bloomsbury. pp. 235–236. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781408181812" title="Special:BookSources/9781408181812"><bdi>9781408181812</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Dictionary+of+Contemporary+Slang&rft.place=London&rft.pages=235-236&rft.edition=fourth&rft.pub=Bloomsbury&rft.date=2014&rft.isbn=9781408181812&rft.aulast=Thorne&rft.aufirst=Tony&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D3_6oRAJSHP4C%26pg%3DPA235&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-114"><a href="#cite_ref-114">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=vsaXzwMndS8C&pg=PA625">Webster's II New College Dictionary</a> (revised ed.). Boston: <a href="/wiki/Houghton_Mifflin_Harcourt" title="Houghton Mifflin Harcourt">Houghton Mifflin Harcourt</a>. 2001. p. 625. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780395962145" title="Special:BookSources/9780395962145"><bdi>9780395962145</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Webster%27s+II+New+College+Dictionary&rft.place=Boston&rft.pages=625&rft.edition=revised&rft.pub=Houghton+Mifflin+Harcourt&rft.date=2001&rft.isbn=9780395962145&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DvsaXzwMndS8C%26pg%3DPA625&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> <li id="cite_note-115"><a href="#cite_ref-115">^</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFThorne2014" class="citation book cs1">Thorne, Tony (2014). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=5He9AgAAQBAJ&pg=PA265">Dictionary of Contemporary Slang</a> (fourth ed.). London: Bloomsbury. p. 265. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781408181812" title="Special:BookSources/9781408181812"><bdi>9781408181812</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Dictionary+of+Contemporary+Slang&rft.place=London&rft.pages=265&rft.edition=fourth&rft.pub=Bloomsbury&rft.date=2014&rft.isbn=9781408181812&rft.aulast=Thorne&rft.aufirst=Tony&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D5He9AgAAQBAJ%26pg%3DPA265&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2>[<a href="/w/index.php?title=Age_disparity_in_sexual_relationships&action=edit&section=18" title="Edit section: Further reading">edit</a>]</div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAlarieCarmichael2015" class="citation journal cs1">Alarie, Milaine; Carmichael, Jason T. (2015). ""The "Cougar phenomenon: An Examination of the Factors That Influence Age-Hypogamous Sexual Relationships Among Middle-Aged Women". Journal of Marriage and Family. 77 (5): 1250–1265. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fjomf.12213">10.1111/jomf.12213</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Marriage+and+Family&rft.atitle=%22The+%22Cougar+phenomenon%3A+An+Examination+of+the+Factors+That+Influence+Age-Hypogamous+Sexual+Relationships+Among+Middle-Aged+Women&rft.volume=77&rft.issue=5&rft.pages=1250-1265&rft.date=2015&rft_id=info%3Adoi%2F10.1111%2Fjomf.12213&rft.aulast=Alarie&rft.aufirst=Milaine&rft.au=Carmichael%2C+Jason+T.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"></li> <li>Berardo, F. M., Appel, J., & Berardo, D. H. (1993). Age dissimilar marriages: Review and assessment. Journal of Aging Studies, 7, 93–106. <a href="//doi.org/10.1016/0890-4065(93)90026-G" class="extiw" title="doi:10.1016/0890-4065(93)90026-G">doi:10.1016/0890-4065(93)90026-G</a></li> <li>Buss, D. M. (2015). The Handbook of Evolutionary Psychology, Foundation. New York: John Wiley & Sons.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBuss1989" class="citation journal cs1">Buss, D. M. (1989). <a rel="nofollow" class="external text" href="https://doi.org/10.1017%2Fs0140525x00023992">"Sex differences in human mate preferences: Evolutionary hypotheses tested in 37 cultures"</a>. Behavioral and Brain Sciences. 12 (1): 1–14. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1017%2Fs0140525x00023992">10.1017/s0140525x00023992</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Behavioral+and+Brain+Sciences&rft.atitle=Sex+differences+in+human+mate+preferences%3A+Evolutionary+hypotheses+tested+in+37+cultures&rft.volume=12&rft.issue=1&rft.pages=1-14&rft.date=1989&rft_id=info%3Adoi%2F10.1017%2Fs0140525x00023992&rft.aulast=Buss&rft.aufirst=D.+M.&rft_id=https%3A%2F%2Fdoi.org%2F10.1017%252Fs0140525x00023992&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBussBarnes1986" class="citation journal cs1">Buss, D. M.; Barnes, M. (1986). "Preferences in human mate selection". Journal of Personality and Social Psychology. 50 (3): 559. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1037%2F0022-3514.50.3.559">10.1037/0022-3514.50.3.559</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Personality+and+Social+Psychology&rft.atitle=Preferences+in+human+mate+selection&rft.volume=50&rft.issue=3&rft.pages=559&rft.date=1986&rft_id=info%3Adoi%2F10.1037%2F0022-3514.50.3.559&rft.aulast=Buss&rft.aufirst=D.+M.&rft.au=Barnes%2C+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"></li> <li>McKenzie, Lara (2021). "Age-dissimilar couple relationships: 25 years in review". Journal of Family Theory and Review. 13 (4): 496–514. <a href="//doi.org/10.1111/jftr.12427" class="extiw" title="doi:10.1111/jftr.12427">doi:10.1111/jftr.12427</a></li> <li>Schwartz, C. R. (2013). "Trends and variation in assortative mating: Causes and consequences". Annual Review of Sociology, 39, 451–470. <a href="//doi.org/10.1146/annurev-soc-071312-145544" class="extiw" title="doi:10.1146/annurev-soc-071312-145544">doi:10.1146/annurev-soc-071312-145544</a></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTimeusReynar1998" class="citation journal cs1">Timeus, I.M.; Reynar, A. (1998). "Polygynists and their wives in sub-Saharan Africa: an analysis of five Demographic and Health Surveys". Population Studies. 52 (2): 145–162. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1080%2F0032472031000150346">10.1080/0032472031000150346</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Population+Studies&rft.atitle=Polygynists+and+their+wives+in+sub-Saharan+Africa%3A+an+analysis+of+five+Demographic+and+Health+Surveys&rft.volume=52&rft.issue=2&rft.pages=145-162&rft.date=1998&rft_id=info%3Adoi%2F10.1080%2F0032472031000150346&rft.aulast=Timeus&rft.aufirst=I.M.&rft.au=Reynar%2C+A.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAge+disparity+in+sexual+relationships" class="Z3988"></li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid 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title="Cognitivism (psychology)">Cognitivism</a></li> <li><a href="/wiki/Gene-centered_view_of_evolution" title="Gene-centered view of evolution">Gene selection theory</a></li> <li><a href="/wiki/Modern_synthesis_(20th_century)" title="Modern synthesis (20th century)">Modern synthesis</a></li></ul></li> <li><a href="/wiki/Criticism_of_evolutionary_psychology" title="Criticism of evolutionary psychology">Criticism</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;"><a href="/wiki/Human_evolution" title="Human evolution">Evolutionary processes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Psychological_adaptation" title="Psychological adaptation">Adaptations</a></li> <li><a href="/wiki/Altruism_(biology)" title="Altruism (biology)">Altruism</a> <ul><li><a href="/wiki/Cheating_(biology)" title="Cheating (biology)">Cheating</a></li> 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selection</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Areas</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Evolution_of_cognition" title="Evolution of cognition">Cognition</a> / <a href="/wiki/Evolution_of_emotion" title="Evolution of emotion">Emotion</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Affect_(psychology)" title="Affect (psychology)">Affect</a> <ul><li><a href="/wiki/Affect_display" title="Affect display">Display</a></li> <li><a href="/wiki/Display_rules" title="Display rules">Display rules</a></li> <li><a href="/wiki/Facial_expression" title="Facial expression">Facial expression</a></li></ul></li> <li><a href="/wiki/Behavioral_modernity" title="Behavioral modernity">Behavioral modernity</a></li> <li><a href="/wiki/Cognitive_module" title="Cognitive module">Cognitive module</a>/<a href="/wiki/Modularity_of_mind" title="Modularity of mind">modularity of mind</a> <ul><li><a href="/wiki/Automatic_and_controlled_processes" title="Automatic and controlled processes">Automatic and controlled processes</a></li> <li><a href="/wiki/Computational_theory_of_mind" title="Computational theory of mind">Computational theory of mind</a></li> <li><a href="/wiki/Domain-general_learning" title="Domain-general learning">Domain generality</a></li> <li><a href="/wiki/Domain_specificity" title="Domain specificity">Domain specificity</a></li> <li><a href="/wiki/Dual_process_theory" title="Dual process theory">Dual process theory</a></li></ul></li> <li><a href="/wiki/Cognitive_tradeoff_hypothesis" title="Cognitive tradeoff hypothesis">Cognitive tradeoff hypothesis</a></li> <li><a href="/wiki/Evolution_of_the_brain" title="Evolution of the brain">Evolution of the brain</a></li> <li><a href="/wiki/Evolution_of_nervous_systems" title="Evolution of nervous systems">Evolution of nervous systems</a></li> <li><a href="/wiki/Fight-or-flight_response" title="Fight-or-flight response">Fight-or-flight response</a> <ul><li><a href="/wiki/Arachnophobia" title="Arachnophobia">Arachnophobia</a></li> <li><a href="/wiki/Fear_of_falling" title="Fear of falling">Basophobia</a></li> <li><a href="/wiki/Ophidiophobia" title="Ophidiophobia">Ophidiophobia</a></li></ul></li> <li><a href="/wiki/Folk_biology" title="Folk biology">Folk biology</a>/<a href="/wiki/Folk_taxonomy" title="Folk taxonomy">taxonomy</a></li> <li><a href="/wiki/Folk_psychology" title="Folk psychology">Folk psychology</a>/<a href="/wiki/Theory_of_mind" title="Theory of mind">theory of mind</a></li> <li><a href="/wiki/Evolution_of_human_intelligence" title="Evolution of human intelligence">Intelligence</a> <ul><li><a href="/wiki/Flynn_effect" title="Flynn effect">Flynn effect</a></li> <li><a href="/wiki/Wason_selection_task" title="Wason selection task">Wason selection task</a></li></ul></li> <li><a href="/wiki/Motor_control" title="Motor control">Motor control</a>/<a href="/wiki/Motor_skill" title="Motor skill">skill</a></li> <li><a href="/wiki/Human_multitasking" title="Human multitasking">Multitasking</a></li> <li><a href="/wiki/Neuroscience_of_sleep" title="Neuroscience of sleep">Sleep</a></li> <li><a href="/wiki/Visual_perception" title="Visual perception">Visual perception</a> <ul><li><a href="/wiki/Evolution_of_color_vision_in_primates" title="Evolution of color vision in primates">Color vision</a></li> <li><a href="/wiki/Evolution_of_the_eye" title="Evolution of the eye">Eye</a></li> <li><a href="/wiki/Na%C3%AFve_physics" title="Naïve physics">Naïve physics</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Evolutionary_psychology_and_culture" title="Evolutionary psychology and culture">Culture</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Evolutionary_aesthetics" title="Evolutionary aesthetics">Aesthetics</a> <ul><li><a href="/wiki/Darwinian_literary_studies" title="Darwinian literary studies">Literary criticism</a></li> <li><a href="/wiki/Evolutionary_musicology" title="Evolutionary musicology">Musicology</a></li></ul></li> <li><a href="/wiki/Evolutionary_anthropology" title="Evolutionary anthropology">Anthropology</a> <ul><li><a href="/wiki/Biological_anthropology" title="Biological anthropology">Biological</a></li></ul></li> <li><a href="/wiki/Biosocial_criminology" title="Biosocial criminology">Crime</a></li> <li><a href="/wiki/Evolutionary_linguistics" title="Evolutionary linguistics">Language</a> <ul><li><a href="/wiki/Origin_of_language" title="Origin of language">Origin</a></li> <li><a href="/wiki/Evolutionary_psychology_of_language" title="Evolutionary psychology of language">Psychology</a></li> <li><a href="/wiki/Origin_of_speech" title="Origin of speech">Speech</a></li></ul></li> <li><a href="/wiki/Evolution_of_morality" title="Evolution of morality">Morality</a> <ul><li><a href="/wiki/Moral_foundations_theory" title="Moral foundations theory">Moral foundations</a></li></ul></li> <li><a href="/wiki/Evolutionary_psychology_of_religion" title="Evolutionary psychology of religion">Religion</a> <ul><li><a href="/wiki/Evolutionary_origin_of_religions" class="mw-redirect" title="Evolutionary origin of religions">Origin</a></li></ul></li> <li><a href="/wiki/Cultural_universal" title="Cultural universal">Universals</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Evolutionary_developmental_psychology" title="Evolutionary developmental psychology">Development</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Attachment_theory" title="Attachment theory">Attachment</a></li> <li><a href="/wiki/Human_bonding" title="Human bonding">Bonding</a></li> <li><a href="/wiki/Affectional_bond" title="Affectional bond">Affectional</a>/<a href="/wiki/Maternal_bond" title="Maternal bond">maternal</a>/<a href="/wiki/Paternal_bond" title="Paternal bond">paternal bond</a></li> <li><a href="/wiki/Maternal_deprivation" title="Maternal deprivation">Caregiver deprivation</a></li> <li><a href="/wiki/Attachment_in_children" title="Attachment in children">Childhood attachment</a></li> <li><a href="/wiki/Cinderella_effect" title="Cinderella effect">Cinderella effect</a></li> <li><a href="/wiki/Cognitive_development" title="Cognitive development">Cognitive development</a></li> <li><a href="/wiki/Evolutionary_educational_psychology" title="Evolutionary educational psychology">Education</a></li> <li><a href="/wiki/Language_acquisition" title="Language acquisition">Language acquisition</a></li> <li><a href="/wiki/Personality_development" title="Personality development">Personality development</a></li> <li><a href="/wiki/Socialization" title="Socialization">Socialization</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ergonomics" title="Ergonomics">Human factors</a> / <a href="/wiki/Evolutionary_psychiatry" title="Evolutionary psychiatry">Mental health</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cognitive_ergonomics" title="Cognitive ergonomics">Cognitive ergonomics</a> <ul><li><a href="/wiki/Computer-mediated_communication" title="Computer-mediated communication">Computer-mediated communication</a></li> <li><a href="/wiki/Engineering_psychology" title="Engineering psychology">Engineering psychology</a></li> <li><a href="/wiki/Human%E2%80%93computer_interaction" title="Human–computer interaction">Human–computer interaction</a></li> <li><a href="/wiki/Media_naturalness_theory" title="Media naturalness theory">Media naturalness theory</a></li> <li><a href="/wiki/Neuroergonomics" title="Neuroergonomics">Neuroergonomics</a></li></ul></li> <li><a href="/wiki/Evolutionary_approaches_to_depression" title="Evolutionary approaches to depression">Depression</a></li> <li><a href="/wiki/Digital_media_use_and_mental_health" title="Digital media use and mental health">Digital media use and mental health</a></li> <li><a href="/wiki/Accident-proneness" title="Accident-proneness">Hypophobia</a></li> <li><a href="/wiki/Imprinted_brain_hypothesis" title="Imprinted brain hypothesis">Imprinted brain hypothesis</a></li> <li><a href="/wiki/Mind-blindness" title="Mind-blindness">Mind-blindness</a></li> <li><a href="/wiki/Psychological_effects_of_Internet_use" title="Psychological effects of Internet use">Psychological effects of Internet use</a></li> <li><a href="/wiki/Rank_theory_of_depression" title="Rank theory of depression">Rank theory of depression</a></li> <li><a href="/wiki/Evolution_of_schizophrenia" title="Evolution of schizophrenia">Schizophrenia</a></li> <li><a href="/wiki/Screen_time" title="Screen time">Screen time</a></li> <li><a href="/wiki/Smartphones_and_pedestrian_safety" title="Smartphones and pedestrian safety">Smartphones and pedestrian safety</a></li> <li><a href="/wiki/Social_aspects_of_television" title="Social aspects of television">Social aspects of television</a></li> <li><a href="/wiki/Societal_impacts_of_cars" title="Societal impacts of cars">Societal impacts of cars</a> <ul><li><a href="/wiki/Distracted_driving" title="Distracted driving">Distracted driving</a></li> <li><a href="/wiki/Lead%E2%80%93crime_hypothesis" title="Lead–crime hypothesis">Lead–crime hypothesis</a></li> <li><a href="/wiki/Mobile_phones_and_driving_safety" title="Mobile phones and driving safety">Mobile phones and driving safety</a></li> <li><a href="/wiki/Texting_while_driving" title="Texting while driving">Texting while driving</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sexology" title="Sexology">Sex</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Human_sexual_activity" title="Human sexual activity">Activity</a></li> <li><a href="/wiki/Attachment_in_adults" title="Attachment in adults">Adult attachment</a></li> <li><a class="mw-selflink selflink">Age disparity</a></li> <li><a href="/wiki/Sexual_arousal" title="Sexual arousal">Arousal</a></li> <li><a href="/wiki/Concealed_ovulation" title="Concealed ovulation">Concealed ovulation</a></li> <li><a href="/wiki/Coolidge_effect" title="Coolidge effect">Coolidge effect</a></li> <li><a href="/wiki/Sexual_desire" title="Sexual desire">Desire</a></li> <li><a href="/wiki/Sexual_fantasy" title="Sexual fantasy">Fantasy</a></li> <li><a href="/wiki/Effects_of_hormones_on_sexual_motivation" title="Effects of hormones on sexual motivation">Hormonal motivation</a></li> <li><a href="/wiki/Sexual_jealousy" title="Sexual jealousy">Jealousy</a></li> <li><a href="/wiki/Mate_guarding_in_humans" title="Mate guarding in humans">Mate guarding</a></li> <li><a href="/wiki/Mating_preferences" title="Mating preferences">Mating preferences</a></li> <li><a href="/wiki/Human_mating_strategies" title="Human mating strategies">Mating strategies</a></li> <li><a href="/wiki/Biology_and_sexual_orientation" title="Biology and sexual orientation">Orientation</a></li> <li><a href="/wiki/Ovulatory_shift_hypothesis" title="Ovulatory shift hypothesis">Ovulatory shift hypothesis</a></li> <li><a href="/wiki/Pair_bond" title="Pair bond">Pair bond</a></li> <li><a href="/wiki/Physical_attractiveness" title="Physical attractiveness">Physical</a>/<a href="/wiki/Sexual_attraction" title="Sexual attraction">Sexual attraction</a></li> <li><a href="/wiki/Human_sexuality" title="Human sexuality">Sexuality</a>/<a href="/wiki/Human_male_sexuality" title="Human male sexuality">male</a>/<a href="/wiki/Human_female_sexuality" title="Human female sexuality">female</a></li> <li><a href="/wiki/Sexy_son_hypothesis" title="Sexy son hypothesis">Sexy son hypothesis</a></li> <li><a href="/wiki/Westermarck_effect" title="Westermarck effect">Westermarck effect</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sex_differences_in_psychology" title="Sex differences in psychology">Sex differences</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aggression" title="Aggression">Aggression</a></li> <li><a href="/wiki/Sex_and_gender_differences_in_autism" title="Sex and gender differences in autism">Autism</a></li> <li><a href="/wiki/Sex_differences_in_cognition" title="Sex differences in cognition">Cognition</a></li> <li><a href="/wiki/Sex_differences_in_crime" title="Sex differences in crime">Crime</a></li> <li><a href="/wiki/Sexual_division_of_labour" title="Sexual division of labour">Division of labour</a></li> <li><a href="/wiki/Sex_differences_in_emotional_intelligence" title="Sex differences in emotional intelligence">Emotional intelligence</a></li> <li><a href="/wiki/Empathising%E2%80%93systemising_theory" title="Empathising–systemising theory">Empathising–systemising theory</a></li> <li><a href="/wiki/Gender_role" title="Gender role">Gender role</a></li> <li><a href="/wiki/Sex_differences_in_intelligence" title="Sex differences in intelligence">Intelligence</a></li> <li><a href="/wiki/Sex_differences_in_memory" title="Sex differences in memory">Memory</a></li> <li><a href="/wiki/Mental_disorders_and_gender" title="Mental disorders and gender">Mental health</a></li> <li><a href="/wiki/Sex_differences_in_narcissism" title="Sex differences in narcissism">Narcissism</a></li> <li><a href="/wiki/Neuroscience_of_sex_differences" title="Neuroscience of sex differences">Neuroscience</a></li> <li><a href="/wiki/Sex_differences_in_schizophrenia" title="Sex differences in schizophrenia">Schizophrenia</a></li> <li><a href="/wiki/Substance_abuse" title="Substance abuse">Substance abuse</a></li> <li><a href="/wiki/Gender_differences_in_suicide" title="Gender differences in suicide">Suicide</a></li> <li><a href="/wiki/Variability_hypothesis" title="Variability hypothesis">Variability hypothesis</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Related subjects</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Academic disciplines</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Behavioral_economics" title="Behavioral economics">Behavioral</a>/<a href="/wiki/Evolutionary_economics" title="Evolutionary economics">evolutionary economics</a></li> <li><a href="/wiki/Behavioral_epigenetics" title="Behavioral epigenetics">Behavioral epigenetics</a>/<a href="/wiki/Behavioural_genetics" title="Behavioural genetics">genetics</a></li> <li><a href="/wiki/Affective_neuroscience" title="Affective neuroscience">Affective</a>/<a href="/wiki/Behavioral_neuroscience" title="Behavioral neuroscience">behavioral</a>/<a href="/wiki/Cognitive_neuroscience" title="Cognitive neuroscience">cognitive</a>/<a href="/wiki/Evolutionary_neuroscience" title="Evolutionary neuroscience">evolutionary neuroscience</a></li> <li><a href="/wiki/Biocultural_anthropology" title="Biocultural anthropology">Biocultural anthropology</a></li> <li><a href="/wiki/Biological_psychiatry" title="Biological psychiatry">Biological psychiatry</a></li> <li><a href="/wiki/Cognitive_psychology" title="Cognitive psychology">Cognitive psychology</a></li> <li><a href="/wiki/Cognitive_science" title="Cognitive science">Cognitive science</a></li> <li><a href="/wiki/Cross-cultural_psychology" title="Cross-cultural psychology">Cross-cultural psychology</a></li> <li><a href="/wiki/Ethology" title="Ethology">Ethology</a></li> <li><a href="/wiki/Evolutionary_biology" title="Evolutionary biology">Evolutionary biology</a></li> <li><a href="/wiki/Evolutionary_medicine" title="Evolutionary medicine">Evolutionary medicine</a></li> <li><a href="/wiki/Functional_psychology" title="Functional psychology">Functional psychology</a></li> <li><a href="/wiki/Neuropsychology" title="Neuropsychology">Neuropsychology</a></li> <li><a href="/wiki/Philosophy_of_mind" title="Philosophy of mind">Philosophy of mind</a></li> <li><a href="/wiki/Population_genetics" title="Population genetics">Population genetics</a></li> <li><a href="/wiki/Primatology" title="Primatology">Primatology</a></li> <li><a href="/wiki/Sociobiology" title="Sociobiology">Sociobiology</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Research topics</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cultural_evolution" title="Cultural evolution">Cultural evolution</a></li> <li><a href="/wiki/Evolutionary_epistemology" title="Evolutionary epistemology">Evolutionary epistemology</a></li> <li><a href="/wiki/Great_ape_language" title="Great ape language">Great ape language</a></li> <li><a href="/wiki/Human%E2%80%93animal_communication" title="Human–animal communication">Human–animal communication</a></li> <li><a href="/wiki/Missing_heritability_problem" title="Missing heritability problem">Missing heritability problem</a></li> <li><a href="/wiki/Primate_cognition" title="Primate cognition">Primate cognition</a></li> <li><a href="/wiki/Unit_of_selection" title="Unit of selection">Unit of selection</a> <ul><li><a href="/wiki/Coevolution" title="Coevolution">Coevolution</a></li> <li><a href="/wiki/Cultural_group_selection" title="Cultural group selection">Cultural group selection</a></li> <li><a href="/wiki/Dual_inheritance_theory" title="Dual inheritance theory">Dual inheritance theory</a></li> <li><a href="/wiki/Fisher%27s_principle" title="Fisher's principle">Fisher's principle</a></li> <li><a href="/wiki/Group_selection" title="Group selection">Group selection</a></li> <li><a href="/wiki/Hologenome_theory_of_evolution" title="Hologenome theory of evolution">Hologenome theory</a></li> <li><a href="/wiki/Lamarckism" title="Lamarckism">Lamarckism</a></li> <li><a href="/wiki/Population" title="Population">Population</a></li> <li><a href="/wiki/Punctuated_equilibrium" title="Punctuated equilibrium">Punctuated equilibrium</a></li> <li><a href="/wiki/Recent_human_evolution" title="Recent human evolution">Recent human evolution</a></li> <li><a href="/wiki/Species" title="Species">Species</a></li> <li><a href="/wiki/Species_complex" title="Species complex">Species complex</a></li> <li><a href="/wiki/Transgenerational_epigenetic_inheritance" title="Transgenerational epigenetic inheritance">Transgenerational epigenetic inheritance</a></li> <li><a href="/wiki/Trivers%E2%80%93Willard_hypothesis" title="Trivers–Willard hypothesis">Trivers–Willard hypothesis</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Theoretical positions</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cultural_selection_theory" title="Cultural selection theory">Cultural selection theory</a></li> <li><a href="/wiki/Determinism" title="Determinism">Determinism</a>/<a href="/wiki/Indeterminism" title="Indeterminism">indeterminism</a> <ul><li><a href="/wiki/Biological_determinism" title="Biological determinism">Biological determinism</a></li> <li><a href="/wiki/Connectionism" title="Connectionism">Connectionism</a></li> <li><a href="/wiki/Cultural_determinism" title="Cultural determinism">Cultural determinism</a></li> <li><a href="/wiki/Environmental_determinism" title="Environmental determinism">Environmental determinism</a></li> <li><a href="/wiki/Nature_versus_nurture" title="Nature versus nurture">Nature versus nurture</a></li> <li><a href="/wiki/Psychological_nativism" title="Psychological nativism">Psychological nativism</a></li> <li><a href="/wiki/Social_constructionism" title="Social constructionism">Social constructionism</a></li> <li><a href="/wiki/Social_determinism" title="Social determinism">Social determinism</a></li> <li><a href="/wiki/Standard_social_science_model" title="Standard social science model">Standard social science model</a></li></ul></li> <li><a href="/wiki/Functionalism_(philosophy_of_mind)" title="Functionalism (philosophy of mind)">Functionalism</a></li> <li><a href="/wiki/Memetics" title="Memetics">Memetics</a></li> <li><a href="/wiki/Multilineal_evolution" title="Multilineal evolution">Multilineal evolution</a></li> <li><a href="/wiki/Neo-Darwinism" title="Neo-Darwinism">Neo-Darwinism</a></li> <li><a href="/wiki/Neoevolutionism" title="Neoevolutionism">Neoevolutionism</a></li> <li><a href="/wiki/Sociocultural_evolution" title="Sociocultural evolution">Sociocultural evolution</a></li> <li><a href="/wiki/Unilineal_evolution" title="Unilineal evolution">Unilineal evolution</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/List_of_evolutionary_psychologists" title="List of evolutionary 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