When you wake up and start a new day of work and life, you may not realize that in the night that just passed, we probably went through 5 sleep cycles.
A complete sleep cycle begins with light sleep and ends with REM (Rapid Eyes Movement) sleep.
During REM sleep, you become a cold-blooded animal-during dreamy REM sleep, your body no longer produces heat like a stove. We will lose our ability to regulate body temperature.
However, you don’t have to worry about the impact of this on your health. The REM sleep period is generally about 20 minutes, the shortest is 2 minutes, and it will last for 45 minutes.