Hallucinogens like DMT, psilocin, and LSD might rewrite the rules of sleep, blurring the line between dreams and reality.

REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Tampa Bay physicians are urging night owls to pay attention to a recent study linking poor sleep health to Alzheimer's ...

Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...

Shorter slow wave sleep and rapid eye movement sleep were associated with decreased volume in Alzheimer disease-vulnerable brain regions.

Can poor sleep raise your risk of Alzheimer’s? A new study links reduced sleep stages to brain shrinkage in areas prone to ...

What if we didn't need sleep to dream? Well, scientists may have found a way to hack those benefits even when you're awake.

or REM, sleep — may hasten the deterioration of parts of the brain associated with Alzheimer’s disease, a new study found. Deficits in slow-wave and REM sleep appear to shrink parts of the ...

Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep may hasten the ...

It's no secret that a good night's sleep is key to a healthy brain. However, the full extent of the importance of rest on our ...

Around 70% of college students report getting less than eight hours of sleep a night. With looming deadlines, buzzing social ...