Recent research reveals we dip into a sleeplike state as our brains flush out waste buildup.

Scientists reveal how sleep protects brain cells, manages metabolic damage, and may help explain links to Alzheimer’s disease.

Plus, how to determine exactly how much shuteye you need. Getting around eight hours of sleep regularly helps you feel more refreshed, emotionally steady, and mentally sharp by allowing your brain and ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? When study participants took an attention test while sleep-deprived, their ...