Brit sleep experts say it's time to kill daylight saving • The Register

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srcset="/design_picker/f5daacc84b9722c1e31ba85f836c37e4ad993fc4/graphics/icons/bubble_comment_white.svg"> </a> </div> </div> <div class="header_right"> <h1>UK sleep experts say it's time to kill daylight saving for good</h1> </div> <div class="header_left"> <div class="comments_wrap desktop_only"> <a class="comment_count" aria-label="Read comments on this article, currently there are 282 comments" title="View comments on this article" href="https://forums.theregister.com/forum/all/2024/10/27/abolish_daylight_saving_time/"> <strong aria-hidden="true">282</strong> <img aria-hidden="true" width="18" height="16" alt="comment bubble on white" src="/design_picker/f5daacc84b9722c1e31ba85f836c37e4ad993fc4/graphics/icons/bubble_comment_white.png" srcset="/design_picker/f5daacc84b9722c1e31ba85f836c37e4ad993fc4/graphics/icons/bubble_comment_white.svg"> </a> </div> </div> <div class="header_right"> <h2>It turns out morning light beats evening rays for health benefits</h2> <div class="byline_and_dateline_and_share_and_comments"> <div class="byline_wrap"> <img class="vulture_icon" src="/design_picker/d518b499f8a6e2c65d4d8c49aca8299d54b03012/graphics/icon/vulture_red.svg" alt="icon"> <a class="byline" href="/Author/Brandon-Vigliarolo" title="Read more by this author"> Brandon Vigliarolo </a> </div> <div class="dateline_wrap"> <span class="dateline"> Sun 27 Oct 2024 <span class="slashes"> // </span> 10:28 UTC </span> </div> </div> </div> </div> <div id=main-col> <div id="article-wrapper" class="article_wrap"> <div class="left_col"> <div class="floating_bar"> <div class="sharing_widget_story_desktop uses_overlay"> <button class="top_blob" aria-label="Share this story" title="Share this story"> <img width="25" height="25" src="/design_picker/d2e337b97204af4aa34dda04c4e5d56d954b216f/graphics/icons/social_share_icon.svg" alt=""> </button> <div class="sharing_widget_overlay" id="sharing_widget_overlay_2"> <div class="sharing_box"> <a data-social="reddit" href="https://www.reddit.com/submit?url=https://www.theregister.com/2024/10/27/abolish_daylight_saving_time/%3futm_medium%3dshare%26utm_content%3darticle%26utm_source%3dreddit&title=UK%20sleep%20experts%20say%20it%27s%20time%20to%20kill%20daylight%20saving%20for%20good" target="_blank"> </a> <a data-social="twitter" class="twit" href="https://twitter.com/intent/tweet?text=UK%20sleep%20experts%20say%20it%27s%20time%20to%20kill%20daylight%20saving%20for%20good&url=https://www.theregister.com/2024/10/27/abolish_daylight_saving_time/%3futm_medium%3dshare%26utm_content%3darticle%26utm_source%3dtwitter&via=theregister" target="_blank"> </a> <a data-social="facebook" class="faceb_dialog" href="https://www.facebook.com/dialog/feed?app_id=1404095453459035&display=popup&link=https://www.theregister.com/2024/10/27/abolish_daylight_saving_time/%3futm_medium%3dshare%26utm_content%3darticle%26utm_source%3dfacebook" target="_blank"> </a> <br class="hide_after_sm"> <a data-social="linkedin" class="linkedin_social" href="https://www.linkedin.com/shareArticle?mini=true&url=https://www.theregister.com/2024/10/27/abolish_daylight_saving_time/%3futm_medium%3dshare%26utm_content%3darticle%26utm_source%3dlinkedin&title=UK%20sleep%20experts%20say%20it%27s%20time%20to%20kill%20daylight%20saving%20for%20good&summary=It%20turns%20out%20morning%20light%20beats%20evening%20rays%20for%20health%20benefits" target="_blank"> </a> <a data-social="whatsapp" href="https://api.whatsapp.com/send?text=https://www.theregister.com/2024/10/27/abolish_daylight_saving_time/%3futm_medium%3dshare%26utm_content%3darticle%26utm_source%3dwhatsapp" target="_blank"> </a> </div> </div> </div> </div> <div class="promo_advert"> </div> </div> <div class="centre_col"> <div id="article"> <div id="body"> <p>The streets of Soho aren't alive with disco or bellbottoms anymore, so maybe it's time to ditch another '70s icon we should have outgrown by now, says the British Sleep Society (BSS).</p> <p>A group of researchers in the UK affiliated with the BSS published a <a target="_blank" href="https://onlinelibrary.wiley.com/doi/10.1111/jsr.14352" rel="nofollow">paper</a> this week calling for the permanent abolition of Daylight Saving Time (DST) and adherence to Greenwich Mean Time (GMT), in large part because modern evidence suggests having that extra hour of sunlight in the evenings is worse for our health than we thought back in the 1970s when the concept was all the rage in Europe.</p> <p>Not only does GMT more closely align with the natural day/light cycle in the UK, the boffins assert, but decades of research into sleep and circadian rhythms have been produced since DST was enacted that have yet to be considered.</p> <div aria-hidden="true" class="adun" data-pos="top" data-raptor="condor" data-xsm=",fluid,mpu," data-sm=",fluid,mpu," data-md=",fluid,mpu,"> <noscript> <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0" alt=""> </a> </noscript> </div> <p>The human circadian rhythm, the 24-hour cycle our bodies go through, drives a lot about our health beyond sleep. It regulates hormone release, gene expression, metabolism, mood (who isn't grumpier when waking up in January?), and the like. In short, it's important. Messing with that rhythm by forcing ourselves out of bed earlier for several months out of the year can have lasting effects, the researchers said.</p> <div aria-hidden="true" class="adun" data-pos="top" data-raptor="falcon" data-xmd=",fluid,mpu,leaderboard," data-lg=",fluid,mpu,leaderboard," data-xlg=",fluid,billboard,superleaderboard,mpu,leaderboard," data-xxlg=",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,"> <noscript> <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0" alt=""> </a> </noscript> </div> <div class="adun_eagle_desktop_story_wrapper"> <div aria-hidden="true" class="adun" data-pos="mid" data-raptor="eagle" data-xxlg=",mpu,dmpu,"> <noscript> <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0" alt=""> </a> </noscript> </div> </div> <p>According to their review of recent research, having light trigger our circadian rhythms in the mornings to wake us up is far more important than an extra hour of light in the evenings. In fact, contrary to the belief that an extra hour of light in the evenings is beneficial, it might actually cause health problems by, again, mucking about with the human body's understanding of what time it is and how we ought to feel about it.</p> <p>"Disruption of the daily synchronization of our body clocks causes disturbances in our physiology and behavior … which leads to negative short and long-term physical and mental health outcomes," the authors said. </p> <div aria-hidden="true" class="adun" data-pos="top" data-raptor="falcon" data-xsm=",fluid,mpu," data-sm=",fluid,mpu," data-md=",fluid,mpu,"> <noscript> <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Z0hbqe8-7pcEO11KTVUoYwAAAIE&t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0" alt=""> </a> </noscript> </div> <p>That, and we've just plain fooled ourselves into thinking it benefits us in any real way.</p> <ul class="listinks"> <li><a href="https://www.theregister.com/2024/09/04/giant_step_in_nuclear_clock/">Atomic clocks are so last epoch, it's time someone nailed down the nuclear clock</a></li> <li><a href="https://www.theregister.com/2021/09/28/time_zone_database_controversy/">tz database community up in arms over proposals to merge certain time zones</a></li> <li><a href="https://www.theregister.com/2024/07/05/iers_decrees_no_leap_second/">Time Lords decree: No leap second needed in 2024</a></li> <li><a href="https://www.theregister.com/2007/02/06/gartner_daylight_savings/">Stop the US daylight saving madness!</a></li> </ul> <p>"It is sometimes erroneously assumed that DST provides us with more sunlight, but, in fact, all we are doing is changing our behavior by moving our schedules forward by one hour," the researchers said. "While this means there is an hour more sunlight after work/school, DST comes at an expense of one hour less sunlight before work/school, simply because we get up and travel to and from work/school one hour earlier."</p> <p>Of course, eliminating DST is easier said than done in the modern world where computers dictate everything from business services to transportation. Last-minute delays and advances of DST have triggered IT messes in various parts of the world in recent years, so let's hope for more advanced notice if the powers that be decide to take the sleep doctors' orders.</p> <p>And for the love of sleep, the researchers beg, <a target="_blank" href="https://www.theregister.com/2022/03/16/us_senate_dst_forever/">don't spring forward permanently</a>.</p> <p>"Mornings are the time when our body clocks have the greatest need for light to stay in sync," <a target="_blank" href="https://www.northumbria.ac.uk/about-us/news-events/news/sleep-clock-changes/" rel="nofollow">said</a> Dr Megan Crawford, lead author and senior lecturer in psychology at University of Strathclyde. 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