Re: what exaclty happens when we sleep
random eye movement (REM) or early sleep leads to non random eye movement (NREM) or deep sleep. normal circadian rhythms have us sleep according to the sleep cycle of day and night..
there are two kinds of sleep - restless and restful.
teenagers and elderly need to sleep more than babies and adults.
of course, physical health will also dictate how much sleep one should get to be refreshed and energized.
metabolism is active during sleep.
restful sleep helps rejuvenate the skin and healing process.
sleep is particularly necessary for those who work long hours. other wise, their moods and concentration can have a negative impact.
best,
Dushwari