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The body naturally relaxes between 12:00-1:00 a.m. and 4:00-5:00 a.m. This is referred to as our ___________________. Sleep schedule REM cycle Celestial pattern Circadian rhythm
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The body naturally relaxes between 12:00-1:00 a.m. and 4:00-5:00 a.m. This is referred to as our ___________________.

Sleep schedule
REM cycle
Celestial pattern
Circadian rhythm

User Vitor Vicente
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1 Answer

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d) Circadian Rhythm

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User Dicroce
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