Definitions for "Rapid eye movement sleep"
Keywords:  dream, rem, sleep, paradoxical, recurs
See, Sleep stages.
Also known as paradoxical or active sleep, this stage of sleep is where dreaming usually occurs.  It is recognized by very alert brain waves and high muscular tension.  Sometimes the brain has been known to be more active in this state than in a wakeful state.  The name is given from a noticeable eye movement during this stage of sleeping.
A type of sleep during which the body is paralyzed and the eyes move. Dreaming occurs during this sleep.