The 4 Stages of Sleep and Why They Matter
In scientific terms, sleep is a state of altered brain activity. During non-REM sleep, brain activity looks very different than it does when you’re awake, but during the REM portion of your snooze, it actually looks very similar to an awake state. In all stages, though, there’s a lot going on.“Sleep, in a way, is still a big mystery to us,” says Michelle Drerup, PsyD, Director of Behavioral Sleep Medicine at Cleveland Clinic. “We know that in non-REM sleep and when there’s deep sleep, there’s physical restoration occurring, but in REM sleep, there’s still some debate. It is thought that we’re filing things away from the day and [engaging in] memory consolidation.”
Original Article Source Credits:The Healthy,https://www.thehealthy.com
Article Written By:Dawn Yanek
Original Article Posted on : Sep. 12, 2019
Link to Original Article:https://www.thehealthy.com/sleep/stages-of-sleep/