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

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 ...

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

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

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.

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

New research shows that reduced time in slow wave and REM sleep is associated with smaller brain volumes in regions ...

Research reveals how specific sleep stages protect brain vulnerable to Alzheimer's, offering hope through simple lifestyle ...

Deep sleep is the restorative stage of sleep. During this stage the body undergoes tissue repair, the immune system is ...

A new study suggests that insufficient slow-wave and REM sleep may accelerate brain deterioration associated with Alzheimer's disease. Experts recommend maintaining deep sleep through a conducive ...

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 ...