High Blood Pressure - What Is High Blood Pressure?

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</div> </div> <div class="block block-nhlbi-utils block-nhlbi-global-breadcrumb"> <div class="responsive-container responsive-container-constrained breadcrumbs-container"><div class="breadcrumbs"><ul> <li class='breadcrumb-home'><a href='/'>Home</a></li><li class='breacrumb-break'><i class="fas fa-angle-right"></i></li><li class='breadcrumb-parent'><a href='/node/93751'><span class='back-to'> < Back To </span>Health Topics</a></li><li class='breacrumb-break'><i class="fas fa-angle-right"></i></li><li class='breadcrumb-current'>High Blood Pressure</li></ul></div></div> </div> <div class="view-content"> <div class="subnav-menu-wrapper responsive-container responsive-container-constrained component-health-topics-red"> <ul class="subnav-menu"> <li class="nav-active-trail nav-active section-menu-item subnav-link"> <a href="/health/high-blood-pressure" aria-label="What Is High Blood Pressure?-High Blood Pressure" hreflang="en">What Is High Blood Pressure?</a> </li> <li 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addtoany_list" data-a2a-url="https://www.nhlbi.nih.gov/health/high-blood-pressure" data-a2a-title="What Is High Blood Pressure?"> <a class="a2a_dd addtoany_share" href="https://www.addtoany.com/share#url=https%3A%2F%2Fwww.nhlbi.nih.gov%2Fhealth%2Fhigh-blood-pressure&title=What%20Is%20High%20Blood%20Pressure%3F"> <img src="/themes/custom/nhlbi/images/share-alt-icon.svg" alt="Share"> </a> <a class="a2a_button_email"></a> <a class="a2a_button_print"></a> </span> </div> </div> <div class="language-switcher-language-url block block-language block-language-blocklanguage-content" role="navigation"> <div class="responsive-container responsive-container-constrained"><h2 class="visually-hidden" aria-label="Switch to Espanol">Language switcher</h2><ul class="links"><li hreflang="en" data-drupal-link-system-path="node/93173" class="is-active" aria-current="page"><a href="/health/high-blood-pressure" class="language-link is-active" hreflang="en" data-drupal-link-system-path="node/93173" aria-current="page">English</a></li><li hreflang="es" data-drupal-link-system-path="node/93173"><a href="/es/salud/presion-arterial-alta" class="language-link" hreflang="es" data-drupal-link-system-path="node/93173">Español</a></li></ul> </div> </div> <div class="block block-layout-builder block-field-blocknodehealth-topicsfield-component-page-links"> </div> <div class="block block-layout-builder block-field-blocknodehealth-topicsfield-component-sections"> <div class="field field--name-field-component-sections field--type-entity-reference-revisions field--label-hidden"> <div class='field__items'> <div class="paragraph component component-section component-theme-white component-section-theme-white component-section-node-theme- paragraph--type--component-section paragraph--view-mode--default"> <div class="responsive-container responsive-container-constrained"> <div class="field field--name-field-component-section-content field--type-text-long field--label-hidden clearfix field__item"> <figure class="align-right b-loaded caption caption-img "> <div class="embed-video-container embed-video-text-container-disabled align-"> <div class="field field--name-field-video-url field--type-video-embed-field field--label-hidden field__item"><div class="video-embed-field-provider-youtube video-embed-field-responsive-video"><iframe width="854" height="480" frameborder="0" allowfullscreen="allowfullscreen" title="Learn About High Blood Pressure" src="https://www.youtube.com/embed/EDcIaQokrkc?autoplay=0&start=0&rel=0&enablejsapi=1"></iframe> </div> </div> </div> <figcaption><em>High blood pressure, or hypertension, is a common condition that occurs when your blood pressure—the force of the blood on the walls of your arteries—is often too high. </em><a href="https://catalog.nucleusmedicalmedia.com/" rel="noreferrer"><em>Medical Animation Copyright © 2024 Nucleus Medical Media, All rights reserved.</em></a></figcaption> </figure> <p><br>Half of all American adults have high blood pressure, also known as hypertension. Many don’t even know it. High blood pressure develops when blood flows through your  <span data-entity-type="node" data-entity-uuid="91c34abb-245a-4c53-96ab-3eac8929b0c2" data-embed-button="node" data-entity-embed-display="entity_reference:entity_reference_entity_view" data-entity-embed-display-settings="{"view_mode":"default","data-glossary-capitalization":"none","data-glossary-plural":"plural","data-glossary-style":"0|0|0"}" data-langcode="en" class="entity-embed-glossary_term embedded-entity"> <a class="glossary-term" href="#" title="Definition of artery " alt="Definition of artery" data-term="artery" data-pronunciation="ARR-tuh-ree" data-definition="A blood vessel that carries blood from the heart to the organs. Most arteries carry oxygenated blood. The pulmonary arteries carry deoxygenated blood away from the heart to the lungs. " role="link"> arteries </a> </span>  at higher-than-normal pressures.</p><p>Blood pressures are written as two numbers separated by a slash like this: 120/80 mm Hg. You can say this as “120 over 80 millimeters of mercury” or just as “120 over 80.” The first number is your  <span data-entity-type="node" data-entity-uuid="dd3f1e0e-d38f-4c45-a322-dba724dbbe63" data-embed-button="node" data-entity-embed-display="entity_reference:entity_reference_entity_view" data-entity-embed-display-settings="{"view_mode":"default","data-glossary-capitalization":"none","data-glossary-plural":"none","data-glossary-style":"0|0|0"}" data-langcode="en" class="entity-embed-glossary_term embedded-entity"> <a class="glossary-term" href="#" title="Definition of systolic " alt="Definition of systolic" data-term="systolic" data-pronunciation="sis-TOL-ik" data-definition="The phase of circulation when the heart pumps and the pressure of blood against the vessels is highest." role="link"> systolic </a> </span> pressure — that’s the force of the blood flow when blood is pumped out of the heart. The second number is your  <span data-entity-type="node" data-entity-uuid="1d4c077e-1ed5-4246-b6b9-0dea89b280e3" data-embed-button="node" data-entity-embed-display="entity_reference:entity_reference_entity_view" data-entity-embed-display-settings="{"view_mode":"default","data-glossary-capitalization":"none","data-glossary-plural":"none","data-glossary-style":"0|0|0"}" data-langcode="en" class="entity-embed-glossary_term embedded-entity"> <a class="glossary-term" href="#" title="Definition of diastolic " alt="Definition of diastolic" data-term="diastolic" data-pronunciation="DY-uh-stol-ik" data-definition="The phase of circulation when the heart fills and the pressure of blood against the vessels is lowest." role="link"> diastolic </a> </span> pressure, which is measured between heartbeats when the heart is filling with blood.</p><p>Your blood pressure changes throughout the day based on your activities. A healthy systolic blood pressure is less than 120 mm Hg. A healthy diastolic pressure is less than 80 mm Hg. Your blood pressure is high when you have consistent systolic readings of 130 mm Hg or higher, or diastolic readings of 80 mm Hg or higher.</p><h3>Blood pressure levels</h3><table class="usa-table"><thead><tr><th scope="col"><strong>Blood Pressure Category</strong></th><th scope="col"><strong>Systolic and Diastolic Pressure (mm Hg)</strong></th></tr></thead><tbody><tr><th scope="row"><strong>Normal</strong></th><td>Less than 120 systolic pressure AND Less than 80 diastolic pressure</td></tr><tr><th scope="row"><strong>Elevated</strong></th><td>120 to 129 systolic pressure AND Less than 80 diastolic pressure</td></tr><tr><th scope="row"><strong>High Blood Pressure Stage 1</strong></th><td>130 to 139 systolic pressure OR 80 to 89 diastolic pressure</td></tr><tr><th scope="row"><strong>High Blood Pressure Stage 2</strong></th><td>140 or higher systolic pressure OR 90 or higher diastolic pressure</td></tr><tr><th scope="row"><strong>Hypertensive Crisis </strong><br> </th><td>Higher than 180 systolic pressure OR Higher than 120 diastolic pressure<br><em><strong>Contact your provider immediately.</strong></em></td></tr></tbody></table><p> <span data-entity-type="node" data-entity-uuid="6e4fe6cb-81f5-4999-aa3f-af050c2f075c" data-embed-button="node" data-entity-embed-display="entity_reference:entity_reference_entity_view" data-entity-embed-display-settings="{"view_mode":"default","data-glossary-capitalization":"firstLetter","data-glossary-plural":"plural","data-glossary-style":"0|0|0"}" data-langcode="en" class="entity-embed-glossary_term embedded-entity"> <a class="glossary-term" href="#" title="Definition of Symptom " alt="Definition of Symptom" data-term="Symptom" data-pronunciation="SIMP-tum" data-definition="A problem that a patient experiences that may indicate disease but cannot be seen and does not show up on medical tests or procedures; some examples include headache, fatigue, nausea, or pain." role="link"> Symptoms </a> </span>  from high blood pressure don’t usually occur until it causes serious health problems. About 1 in 3 U.S. adults with high blood pressure aren’t even aware they have it and are not being treated to control their blood pressure. That’s why it is important to have your blood pressure checked at least once a year. Regular monitoring using home blood pressure is also recommended.</p><p>To control or lower high blood pressure, your healthcare provider may recommend that you <a href="/health/heart-healthy-living">adopt a heart-healthy lifestyle</a> that includes:</p><ul><li>Choosing a heart-healthy dietary pattern and foods such as those in the <a href="/education/dash-eating-plan">DASH eating plan</a>, the Dietary Guidelines for Americans, or the Mediterranean eating pattern</li><li>Being physically active and reducing sedentary behavior</li><li>Losing weight for people with overweight or obesity</li><li>Quitting smoking</li><li>Reducing stress</li><li>Getting enough good-quality <a href="/health/sleep">sleep</a></li></ul><p>Your healthcare provider may also recommend medicines to help control your blood pressure.</p><p>Controlling your blood pressure can help prevent or delay serious health problems such as <a href="https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd" rel="noreferrer">chronic kidney disease</a>, <a href="/health/heart-attack">heart attack</a>, <a href="/health/heart-failure">heart failure</a>, <a href="/health/stroke">stroke</a>, and possibly <a href="/health/vascular-dementia">vascular dementia</a>.</p><p><a href="/education/high-blood-pressure">Find research studies and get resources on high blood pressure</a>.</p></div> </div> </div> </div> </div> </div> <div class="block block-nhlbi-health-topics block-nhlbi-book-nav-block"> <nav id="book-navigation-92320" class="book-navigation responsive-container-constrained" role="navigation" aria-labelledby="book-label-92320"> <h3 class="visually-hidden" id="book-label-92320">Book traversal links for What Is High Blood Pressure?</h3> <ul class="book-pager"> <li class="book-pager__item book-pager__item--next"> <h4 class="nav-label">Next</h4> <a href="/health/high-blood-pressure/symptoms" rel="next" 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