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Sleep Facts Review
Recently, there have been many scientific studies done
on sleep but still some
What Regulates Sleep?
Our body is driven by the internal biological clock regulated by factors like hormones, sunlight and temperature. This day/night cycle is called Circadian Rhythm what could be translated roughly to daily circle. The term comes from Latin where "circa" means around and "dies" means day.
Sleep is not uniform. Based on EEG (electroencephalograph), eye movements and some other changes in the body, there are two main types of sleep: NREM (non-rapid eye movement) and REM (rapid eye movement).
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