Think 8 Hours of Sleep Is the Best for Your Cognitive Health? A New Study Suggests Otherwise — Live Feedhttps://www.live-feeds.com/feed/think-8-hours-of-sleep-is-the-best-for-your-cognitive-health-a-new-study-suggests-otherwiseContinuously updated, source-cited coverage. New Research Challenges Traditional 8-Hour Sleep Standard for Cognitive Healthhttps://www.live-feeds.com/feed/think-8-hours-of-sleep-is-the-best-for-your-cognitive-health-a-new-study-suggests-otherwisehttps://www.live-feeds.com/feed/think-8-hours-of-sleep-is-the-best-for-your-cognitive-health-a-new-study-suggests-otherwise#u20692Wed, 01 Jul 2026 23:51:46 +0000Recent studies suggest that sleep quality and specific stages may be more critical for dementia risk than total duration. While general guidelines recommend 7 to 9 hours for adults, genetic factors influence individual needs. New data indicates that even a 1% loss in a specific sleep stage could increase dementia risk.What's confirmed:Most adults require between 7 and 9 hours of sleep per night.Genetic factors such as DEC2 and ADRB1 influence individual sleep needs.Still unconfirmed:Sleep habits can influence the effects of Alzheimer's disease risk genes.