REM sleep is a stage of sleep when your heart rate increases, your blood pressure elevates, and your brain processes emotions ...

Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge.

What defines your sleep-restlessness, reliance on sleep aids or mornings that come too soon? Your sleep patterns can reveal ...

Your nightly sleep cycle plays a key role in the quality of your sleep. Here's what happens in each stage and why it matters ...

REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake. Getting enough REM sleep is crucial, as it helps you store information and ...

Researchers have identified five distinct profiles that map to certain brain signatures. Each profile is tied to certain behaviors and cognitive issues.

An international consortium of researchers has created the largest-ever database compiling records of brain activity during ...

When people believe they’ll be restless under a full moon, that expectation alone can be enough to keep them awake.

Nearly 1 in 5 young adults use cannabis to fall asleep, according to new findings in JAMA Pediatrics. The study of data from 1473 young adults aged between 19 and 30 years also found 7.2% of those ...