Based on the 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

Question

Quizplus · Accepted Answer

The release of melatonin is increased at night, and it helps to regulate the sleep-wake cycle by making the body feel more relaxed and drowsy. Moreover, the decrease in body temperature signals the body to prepare for sleep by slowing down metabolic processes. Norepinephrine, dopamine, and serotonin are neurotransmitters that are involved in regulating various functions in the central nervous system but not specifically related to preparing for sleep.

Based on the Circadian Cycle, the Body Prepares for Sleep