2006-11-05 15:30:00 · 8 answers · asked by Fresh and in the flesh 1 in Health ➔ Mental Health
When you can see their eyes moving a lot under their eyelids.
Definition of Rapid eye movement sleep
Rapid eye movement sleep: Rapid eye movement sleep (REM) sleep is the portion of sleep when there are rapid eye movements (REMs).
Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1-2 hours and are quite variable in length. An episode of REM sleep may last 5 minutes or over an hour. About 20% of sleep is REM sleep. If you sleep 7-8 hours a night, perhaps an hour and half of that time, 90 minutes, is REM sleep.
REM sleep is characterized by a number of other features including rapid, low-voltage brain waves detectable on the electroencephalographic (EEG) recording, irregular breathing and heart rate and involuntary muscle jerks.
By contrast, NREM (non-REM) sleep is dreamless sleep. During NREM, the brain waves on the EEG are typically slow and of high voltage, the breathing and heart rate are slow and regular, the blood pressure is low, and the sleeper is relatively still. NREM sleep is divided into 4 stages of increasing depth of sleep leading to REM sleep. About 80% of sleep is NREM sleep. If you sleep 7-8 hours a night, all but maybe an hour and a half is spent in dreamless NREM sleep.
2006-11-05 15:32:34 · answer #1 · answered by teashy 6 · 0⤊ 0⤋
When REM sleep occurs, the eyes move rapidly back. This motion is apparent when observing the eyelids.
2006-11-05 15:33:33 · answer #2 · answered by sarafaith7 3 · 0⤊ 0⤋
" About 80% of sleep is NREM sleep. If you sleep 7-8 hours a night, all but maybe an hour and a half is spent in dreamless NREM sleep. " This is completely wrong 80% of sleep is nREM sleep but that means all but an hour an a half is REM sleep not the other way around , you probably just typed fast
2013-12-09 13:56:44 · answer #3 · answered by bert 2 · 0⤊ 0⤋
In Rem there is rapid eye movement
2006-11-06 03:19:42 · answer #4 · answered by gwhiz1052 7 · 0⤊ 0⤋
All i know is that REM stands for Rapid Eye Movement. Dont know if you can take it from there
2006-11-05 15:34:03 · answer #5 · answered by Psylence 1 · 0⤊ 0⤋
Rapid Eye Movement does not occur when someone is in deep sleep.
2006-11-05 15:38:37 · answer #6 · answered by Caffeinated 4 · 0⤊ 2⤋
Look at their eyelids if they are in rem their eyelids will not move.
2006-11-05 15:33:44 · answer #7 · answered by Claire 3 · 0⤊ 2⤋
their eyelids flutter
2006-11-05 19:13:44 · answer #8 · answered by clcalifornia 7 · 0⤊ 0⤋