High levels of which chemical in the sleep centers of the brain induce drowsiness and sleep?
A) norepinephrine
B) serotonin
C) adrenalin
D) encephalin
E) cyclic AMP

Question

Quizplus · Accepted Answer

Serotonin is a neurotransmitter that is involved in the regulation of sleep, mood, and other functions. High levels of serotonin in the sleep centers of the brain can promote drowsiness and sleep.

High Levels of Which Chemical in the Sleep Centers of the Brain