{"id":215,"date":"2026-05-08T06:07:33","date_gmt":"2026-05-08T06:07:33","guid":{"rendered":"https:\/\/liftandletgo.com\/index.php\/2026\/05\/08\/alzheimers-risk-rises-when-amount-of-deep-sleep-falls-study-suggests\/"},"modified":"2026-05-08T06:07:33","modified_gmt":"2026-05-08T06:07:33","slug":"alzheimers-risk-rises-when-amount-of-deep-sleep-falls-study-suggests","status":"publish","type":"post","link":"https:\/\/liftandletgo.com\/index.php\/2026\/05\/08\/alzheimers-risk-rises-when-amount-of-deep-sleep-falls-study-suggests\/","title":{"rendered":"Alzheimer\u2019s risk rises when amount of deep sleep falls, study suggests"},"content":{"rendered":"<div data-uri=\"cms.cnn.com\/_components\/ai-article-summary\/instances\/cm8t59doh000z3b6mbjfhvl5i@published\" class=\"ai-article-summary hidden \" data-article-gutter=\"true\" data-selector-brand=\"accent-ai\">    <button class=\"ai-article-summary__toggle\">        <strong class=\"ai-article-summary__title\">            <span class=\"ai-article-summary__stars-icon\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">    <rect width=\"24\" height=\"24\" fill=\"white\"><\/rect>    <path d=\"M16.7322 12.6297L14.7237 12.0545C13.8192 11.7989 12.9952 11.315 12.3307 10.6491C11.6662 9.98311 11.1834 9.15741 10.9284 8.25095L10.3544 6.23807C10.3255 6.16765 10.2764 6.10741 10.2133 6.06502C10.1502 6.02263 10.076 6 10 6C9.92403 6 9.84978 6.02263 9.78667 6.06502C9.72357 6.10741 9.67446 6.16765 9.6456 6.23807L9.07163 8.25095C8.81662 9.15741 8.33377 9.98311 7.66926 10.6491C7.00476 11.315 6.18084 11.7989 5.27634 12.0545L3.26781 12.6297C3.19069 12.6516 3.12281 12.6982 3.07448 12.7623C3.02615 12.8264 3 12.9045 3 12.9848C3 13.0652 3.02615 13.1433 3.07448 13.2074C3.12281 13.2715 3.19069 13.3181 3.26781 13.34L5.27634 13.9152C6.18084 14.1708 7.00476 14.6547 7.66926 15.3206C8.33377 15.9866 8.81662 16.8123 9.07163 17.7187L9.6456 19.7316C9.66749 19.8089 9.71393 19.8769 9.77789 19.9254C9.84185 19.9738 9.91983 20 10 20C10.0802 20 10.1581 19.9738 10.2221 19.9254C10.2861 19.8769 10.3325 19.8089 10.3544 19.7316L10.9284 17.7187C11.1834 16.8123 11.6662 15.9866 12.3307 15.3206C12.9952 14.6547 13.8192 14.1708 14.7237 13.9152L16.7322 13.34C16.8093 13.3181 16.8772 13.2715 16.9255 13.2074C16.9738 13.1433 17 13.0652 17 12.9848C17 12.9045 16.9738 12.8264 16.9255 12.7623C16.8772 12.6982 16.8093 12.6516 16.7322 12.6297Z\" fill=\"black\"><\/path>    <path d=\"M19.8852 5.84129L19.0244 5.59477C18.6368 5.48524 18.2837 5.27786 17.9989 4.99245C17.7141 4.70705 17.5072 4.35317 17.3979 3.96469L17.1519 3.10203C17.1395 3.07185 17.1185 3.04603 17.0914 3.02787C17.0644 3.0097 17.0326 3 17 3C16.9674 3 16.9356 3.0097 16.9086 3.02787C16.8815 3.04603 16.8605 3.07185 16.8481 3.10203L16.6021 3.96469C16.4928 4.35317 16.2859 4.70705 16.0011 4.99245C15.7163 5.27786 15.3632 5.48524 14.9756 5.59477L14.1148 5.84129C14.0817 5.85069 14.0526 5.87064 14.0319 5.89811C14.0112 5.92558 14 5.95907 14 5.9935C14 6.02794 14.0112 6.06143 14.0319 6.0889C14.0526 6.11637 14.0817 6.13632 14.1148 6.14572L14.9756 6.39224C15.3632 6.50176 15.7163 6.70915 16.0011 6.99455C16.2859 7.27996 16.4928 7.63383 16.6021 8.02231L16.8481 8.88498C16.8575 8.9181 16.8774 8.94725 16.9048 8.96801C16.9322 8.98877 16.9656 9 17 9C17.0344 9 17.0678 8.98877 17.0952 8.96801C17.1226 8.94725 17.1425 8.9181 17.1519 8.88498L17.3979 8.02231C17.5072 7.63383 17.7141 7.27996 17.9989 6.99455C18.2837 6.70915 18.6368 6.50176 19.0244 6.39224L19.8852 6.14572C19.9183 6.13632 19.9474 6.11637 19.9681 6.0889C19.9888 6.06143 20 6.02794 20 5.9935C20 5.95907 19.9888 5.92558 19.9681 5.89811C19.9474 5.87064 19.9183 5.85069 19.8852 5.84129Z\" fill=\"black\"><\/path><\/svg><\/span>            <span>Summary<\/span>        <\/strong>            <span class=\"ai-article-summary__toggle-caret-up\" aria-label=\"Toggle Article Summary\"><svg class=\"icon-ui-caret-up-thick\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M2.666 17.703c.654.498 1.6.34 2.169-.252l7.149-7.438a.022.022 0 01.033 0l7.142 7.43c.573.597 1.528.759 2.183.254.81-.623.873-1.833.187-2.546l-8.28-8.614a1.722 1.722 0 00-2.498 0L2.47 15.15c-.687.716-.622 1.93.195 2.552\"><\/path><\/svg><\/span>            <span class=\"ai-article-summary__toggle-caret-down\" aria-label=\"Toggle Article Summary\"><svg class=\"icon-ui-caret-down-thick\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M21.334 6.297c-.654-.498-1.6-.34-2.169.252l-7.149 7.438a.022.022 0 01-.033 0l-7.142-7.43c-.573-.597-1.528-.759-2.183-.254-.81.623-.873 1.833-.187 2.546l8.28 8.614a1.722 1.722 0 002.498 0l8.28-8.614c.687-.716.622-1.93-.195-2.552\"><\/path><\/svg><\/span>    <\/button>    <\/p>\n<div class=\"ai-article-summary__collapsible\">\n<ul class=\"ai-article-summary__items\" data-editable=\"settings\">\n<li class=\"ai-article-summary__item\">Insufficient deep sleep in slow-wave and REM stages may accelerate brain deterioration linked to Alzheimer&#8217;s disease.<\/li>\n<li class=\"ai-article-summary__item\">The brain&#8217;s inferior parietal region shrinks with inadequate deep sleep, according to a new study.<\/li>\n<li class=\"ai-article-summary__item\">During deep sleep, the brain removes toxins while REM sleep processes emotions and consolidates memories.<\/li>\n<li class=\"ai-article-summary__item\">Adults should spend 20% to 25% of sleep in both deep and REM stages, which decrease with age.<\/li>\n<li class=\"ai-article-summary__item\">Consistent bedtimes, optimal sleeping environments and relaxation routines can improve sleep quality without medication.<\/li>\n<\/ul>\n<div class=\"ai-article-summary__footer\">            <span class=\"ai-article-summary__disclaimer-text\">This summary was AI-generated and reviewed by CNN editors.<\/span>                                <\/div>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t4ytfi000v2cnrdikb03v8@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep \u2014 slow-wave and rapid eye movement, or REM, sleep \u2014 may hasten the deterioration of parts of the brain associated with Alzheimer\u2019s disease, a new study found.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000d3b6m79ecag97@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Deficits in slow-wave and REM sleep appear to shrink parts of the brain known to be early indicators of cognitive deterioration and Alzheimer\u2019s disease, said lead study author Gawon Cho, a postdoctoral associate in internal medicine at the Yale School of Medicine in New Haven, Connecticut.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000e3b6mxdmwys7n@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            \u201cWe found the volume of a part of the brain called the inferior parietal region   shrunk in people with inadequate slow and REM sleep,\u201d Cho said. \u201cThat part of the brain synthesizes sensory information, including visuospatial information, so it makes sense that it shows neurodegeneration early in the disease.\u201d    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000f3b6m0v8g3jw0@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Preventive neurologist Dr. Richard Issacson, who established one of the first Alzheimer\u2019s prevention clinics in the United States, said in an email that his clinical experience treating adults at risk for Alzheimer\u2019s supports the study\u2019s findings.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000g3b6mt48v6qa7@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            \u201cWe also found sleep metrics on deeper sleep predicted cognitive function, so between that plus brain volumes, it\u2019s real,\u201d said Issacson, who is director of research at the Institute for Neurodegenerative Diseases in Florida. He was not involved in the study.    <\/p>\n<h2 class=\"subheader inline-placeholder subheader vossi-subheader vossi-subheader--size-h2\" data-editable=\"text\" data-uri=\"cms.cnn.com\/_components\/subheader\/instances\/cm8t57th7000t3b6mrb4cla27@published\" data-component-name=\"subheader\" id=\"what-happens-in-the-brain-during-deep-sleep\" data-article-gutter=\"true\">        What happens in the brain during deep sleep<\/h2>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000h3b6ma39akcfq@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            During deep sleep, the brain sweeps out toxins and dead cells while also repairing and restoring the body for the next day. While we dream during REM sleep, the brain is busy processing emotions, consolidating memories and absorbing new information. It makes sense that getting quality deep and REM sleep is key to our ability to function.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000i3b6m1vju9euq@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Adults need about seven to eight hours of sleep to be healthy, while teens and younger children need much more. However, data shows that more than 1 in 3 American adults  don\u2019t get enough sleep, according to the US Centers for Disease Control and Prevention.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000j3b6m7wjveh6a@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Experts say most adults should spend between 20% and 25% of their night in deep sleep, and the same goes for REM sleep. Older adults require less, while babies need much more \u2014 in fact, infants can spend about 50% of their sleep in REM.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000k3b6mgc6bmotb@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            To make matters worse, deeper stages of sleep decrease as you age, Cho said.    <\/p>\n<div data-uri=\"cms.cnn.com\/_components\/related-content\/instances\/cm8t5rlae00213b6mnevh8zcs@published\" data-component-name=\"related-content\" class=\"related-content_full-width related-content_full-width--article\" data-article-gutter=\"true\">\n<div class=\"related-content_full-width__image image__related-content\">            <\/div>\n<p class=\"related-content_full-width__headline\">            <span class=\"related-content_full-width__title-text\" data-editable=\"content.title\">Related article<\/span>      <span class=\"related-content_full-width__headline-text\" data-editable=\"content.headline\">The potential dangers of sleep trackers, according to experts<\/span>    <\/p>\n<\/p>\n<\/div>\n<h2 class=\"subheader inline-placeholder subheader vossi-subheader vossi-subheader--size-h2\" data-editable=\"text\" data-uri=\"cms.cnn.com\/_components\/subheader\/instances\/cm8t57ti7000u3b6ml6ghp8dz@published\" data-component-name=\"subheader\" id=\"can-you-get-more-deep-sleep\" data-article-gutter=\"true\">        Can you get more deep sleep?<\/h2>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000l3b6mbol1e8y8@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Deep sleep tends to come soon after we fall asleep, while REM sleep appears later in the night, toward morning. Therefore, if you go to bed late and get up early, you are cutting your chances of spending enough time in one or both stages.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000m3b6muox6kk31@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            \u201cThe more time you are in bed, the more a person sleeps, and generally speaking, the longer a person sleeps, the more REM and deep sleep they will get,\u201d Isaacson said.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000n3b6mppz8hov4@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            However, you have to do more than just lie in bed longer \u2014 you also need have to have an uninterrupted, restful sleep on a regular basis, experts say. If you do that, there\u2019s an additional payoff \u2014 a February 2023 study found good sleep habits added nearly five years to a man\u2019s life expectancy and almost 2.5 years to a woman\u2019s life.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000o3b6mbjsg37fj@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            To accomplish this, however, you can\u2019t wake up during the night or have trouble falling asleep more than two times a week, the study found. You also have to feel well rested at least five days a week when you wake up. And finally, you can\u2019t be using sleep medications to achieve your good slumber.    <\/p>\n<div data-uri=\"cms.cnn.com\/_components\/related-content\/instances\/cm8t5im8k001b3b6msvhqcdu3@published\" data-component-name=\"related-content\" class=\"related-content_full-width related-content_full-width--article\" data-article-gutter=\"true\">\n<div class=\"related-content_full-width__image image__related-content\">            <\/div>\n<p class=\"related-content_full-width__headline\">            <span class=\"related-content_full-width__title-text\" data-editable=\"content.title\">Related article<\/span>      <span class=\"related-content_full-width__headline-text\" data-editable=\"content.headline\">Socks could really improve your sleep, experts say<\/span>    <\/p>\n<\/p>\n<\/div>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000p3b6max8m5i4t@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            But don\u2019t lose hope. The good news is that you can easily train your brain to better sleep by following what is called \u201csleep hygiene.\u201d It\u2019s important to go to bed at the same time on most nights and get up at the same time most mornings \u2014 even on weekends and holidays.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000q3b6m5asxjnc8@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Make sure your sleeping environment is optimal \u2014 cooler and darker is better \u2014 and block noise or try a sound machine. Avoid booze before bed \u2014 it may seem like you\u2019re falling asleep more easily, but when your liver finishes metabolizing the alcohol at 3 a.m., your body will wake up, experts say.<a href=\"https:\/\/www.cnn.com\/2022\/02\/11\/health\/eat-to-extend-life-wellness\/index.html\"><\/a>    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000r3b6m0qr898ns@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            Set up a sleep routine, with no blue lights or distractions at least an hour before bedtime. Try meditation, yoga, tai chi, warm baths \u2014 anything that relaxes you is great.    <\/p>\n<p class=\"paragraph inline-placeholder vossi-paragraph\" data-uri=\"cms.cnn.com\/_components\/paragraph\/instances\/cm8t57t8a000s3b6mndc8ms97@published\" data-editable=\"text\" data-component-name=\"paragraph\" data-article-gutter=\"true\">            \u201cHow do you make your sleep better? I think people really have to do their part to improve their own sleep,\u201d Cho said. \u201cThere\u2019s no one medicine that improves overall sleep.\u201d    <\/p>\n<\/p>\n<div>This post appeared first on cnn.com<\/div>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary Insufficient deep sleep in slow-wave and REM stages may accelerate brain deterioration linked to Alzheimer&#8217;s disease. The brain&#8217;s inferior parietal region shrinks with inadequate deep sleep, according to a&hellip;<\/p>\n","protected":false},"author":1,"featured_media":216,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health-care"],"_links":{"self":[{"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/posts\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/comments?post=215"}],"version-history":[{"count":0,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/posts\/215\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/media\/216"}],"wp:attachment":[{"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/liftandletgo.com\/index.php\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}