Your brain cycles through several stages during sleep, and REM sleep might be the most critical. This mysterious phase, where dreams unfold and memories solidify, accounts for roughly a quarter of ...

The internet claims waking at the end of a sleep cycle will leave you refreshed, but experts aren’t convinced. By Clarissa Brincat Published Sep 9, 2025 9:00 AM EDT Image: DepositPhotos Get the ...

A new study has found a link between rapid eye movement (REM) sleep and Alzheimer’s disease. The research from China, published in the journal Alzheimer’s & Dementia by the Alzheimer’s Association, ...

RBD is marked by loss of REM sleep atonia, leading to physical dream enactment. Polysomnography is essential to confirm RBD and rule out other disorders. Idiopathic RBD is a strong predictor of ...

Although we know sleep is essential to our physical and mental well-being, it remains an incredibly enigmatic behavior, scientifically speaking. Researchers at the University of Michigan, however, may ...

A small snack may be doing more at bedtime than quieting a craving. Sleep researchers say one nut in particular lines up with the brain’s dream machinery. Pistachios are rich in melatonin and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Alzheimer’s disease is a devastating condition that impacts millions of families around the world. But ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...

Discover the psychological drivers behind delayed sleep and learn actionable hygiene practices to restore circadian rhythms and cognitive function.

A naturopathic doctor’s video explaining the viral phenomenon of the “second wind” and its effects on sleep hormones has gone viral, resonating with many night owls. In the clip, Dr Kara explains that ...

“Sleep is important to restore the body, but also to clear waste in the brain,” says Brian Koo, MD, a neurologist and assistant professor of neurology at Yale School of Medicine in New Haven, ...