sabihamall31 sabihamall31

15-04-2021
Biology

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Describe the external environment when melatonin levels are highest in the body in the 24-hour cycle

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my1stcatsnameisfrost my1stcatsnameisfrost

15-04-2021

Answer:

Dark and quiet, around 2-4AM

Explanation:

Melatonin is induced by darkness (i.e. when the sun goes down) but the levels reach a peak in the middle of the sleep cycle around 2-4AM, then begin to gradually fall.

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