But how do sleep cycles work? To find out, I took part in a polysomnography. This is a gold standard sleep study that helps ...
In other words, they thought we might assume that "light" sleep is less important than "deep" sleep, so they chose a new, important-sounding name to use in place of "light." A chart on the same ...
Researchers sought to better understand the connection between REM sleep patterns in patients with either insomnia or MDD.