Too much sleep might be worse for your brain than too little
An analysis of 69 studies reveals that oversleeping may raise dementia risk even more than undersleeping. Your brain has a surprisingly narrow sleep window Most people worry about not getting enough sleep. Few consider that getting too much might be worse. A new meta-analysis published pooled data from 69 studies and found that sleeping more than 8 hours a night was associated with a 28% increase in dementia risk, higher than the 18% increase linked to sleeping less than 7 hours. The sweet spot: 7 to 8 hours a night . “Consistently sleeping ou...
