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. Your body ...

Smartwatch makers promise to turn your wrist into a sleep lab, translating tiny movements and heart rate blips into colorful ...

A 2021 phone poll revealed that only 34% of Americans "sometimes" remember their dreams. About 1 in 10 say they "almost always" can, and the same percentage say they "never" do. Explanations for such ...

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 ...

Eugene Aserinsky never wanted to study sleep. He tried being a social worker, a dental student, and even did a stint in the army as an explosives handler. He enrolled at the University of Chicago to ...

There are tell-tale signs when you don’t get enough REM sleep. It’s the fourth stage of sleep and it’s crucial for processing ...

Octopuses cycle through two stages of slumber, a new study reports. First comes quiet sleep, and then a shift to a twitchy, active sleep in which vibrant colors flash across the animals’ skin. These ...

What new research on the avian brain and REM sleep in birds might reveal about our own dream lives. By Maria Popova I once dreamed a kiss that hadn’t yet happened. I dreamed the angle at which our ...

Findings of an abstract presented at CHEST 2021 indicated that antidepressant use was associated with increased REM sleep latency and a complete lack of REM sleep, which may contribute to the poorer ...