Based onthe circadian cycle, the body prepares for sleep at night by decreasing the body temperature and releasing which chemical?
A) Neonephrine
B) Seratonin
C) Melatonin
D) Dopamine
Ans: C
Based on the circadian cycle, the body prepares for sleep at night by decreasing the body temperature and releasing melatonin (a natural chemical produced at night that decreases wakefulness and promotes sleep).
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