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The 24 hour (diurnal) rhythm of our body...

The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone
Or
Which hormone is secreted more in dark condition

A

Adrenaline

B

Melatonin

C

Calcitonin

D

Prolactin

Text Solution

Verified by Experts

The correct Answer is:
B
The pineal gland is a small endocrine gland attached to the dorsal side of the forebrain. It secretes melatonin, an amine hormone derived from tryptophan. Melatonin appears to contribute the setting of body’s biological clock
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