This is especially true, according to the experts at The Sleep Foundation, for REM sleep. On their website, The Sleep ...

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.

Rapid-eye-movement (REM) sleep is associated with more sympathetic activation than is NONREM sleep 1,2. So far, there are no data regarding vascular tone during REM and NONREM sleep in humans.

For the past century, the University of Chicago has been a pioneer in sleep research—from opening the world’s first laboratory devoted to sleep research to discovering REM sleep. Today, UChicago ...

Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts of the brain associated with Alzheimer’s ...