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

During REM sleep, your heart rate increases, your blood pressure elevates, and your eyes move. REM sleep may also be the time when your brain processes emotions and solidifies memories.

Researchers sought to better understand the connection between REM sleep patterns in patients with either insomnia or MDD.

Our brain uses light sleep to transition between slow-wave sleep, or deep sleep, and rapid eye movement, or REM, sleep, which is the stage in which we dream. Experts say about 50% of your night ...

we’re also regulating our mood and consolidating our memories. Rapid eye movement, or REM, sleep was discovered in 1953—more than 15 years after stages 1 through 4 had been mapped—by Eugene ...