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

A new study reveals that not getting enough of specific stages in the sleep cycle may be linked to cognitive decline and potentially may lead to Alzheimer's disease. Researchers from the Yale School ...

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

While sleep’s positive impact on cognition has long been recognized, Baycrest researchers have revealed that a good night’s ...

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

People on TikTok and other social media say they feel more alert when they have had fewer hours of sleep—but sleep scientists ...

I've learnt that sleep regularity is more important than sleep duration, and that fact has transformed my rest. Here's why.

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 cognitive function is still being explored. And now, new research has ...

While the verdict on its cause is not clear, Alzheimer's is thought to be caused by a combination of factors, including ...