A new study showed that people who took longer to enter this dream phase of sleep had higher levels of amyloid beta and tau, ...

REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in ...

A sleep expert details why you wake up groggy from a nap and how to make the most of your snack-sized slumber.

The locus coeruleus is emerging as a major new area of research interest, with many important functions such as regulating ...

Prolonged rapid eye movement sleep latency may be an early indicator of Alzheimer’s disease and related dementias, according ...

A delay in getting to the rapid eye movement (REM) stage of sleep may be linked to Alzheimer's disease and related dementias, ...

Taking longer to drift into the dreaming phase – known as rapid eye movement (REM) sleep – could be an early sign of ...

However, some research suggests that poor sleep could raise your risk of Alzheimer’s. A study published in November found ...

I spent months testing the Oura Ring, Whoop, Google Pixel Watch, and Ultrahuman Ring AIR so you don’t have to. Here is what I ...

Researchers have discovered that positive emotions enhance perceptual memories during sleep, particularly in the non-REM stage.

Taking longer to get to deep sleep or REM sleep can disrupt memory consolidation and emotional processing, affecting overall ...

Scientists have uncovered a potential link between delayed REM sleep and Alzheimer's disease. A new study shows that ...