““Part of the brain’s job in managing our dreams is to keep us safe, so during REM sleep, the brain shuts off neurons in our spinal cord (National Institute of Neurological Disorders and Stroke, n.d.). This renders us unable to move our muscles, which prevents us from acting out our dreams. In effect, the brain “switches off” our behavior. Some people report experiences of coming out of a dream and for a few seconds feeling “paralyzed.” That’s known as sleep paralysis, and is the brain’s way of protecting us from harming ourselves or others while we dream.””
