Question : A hormone responsible for normal sleep wake cycle is

1.	Question : A hormone responsible for normal sleep wake cycle is
Answer» epinephrine gastrin melatonin. insulin. Solution :Melatonin is a hormone secreted by pineal gland. Immediately above the optic CHIASMA (in the brain) in a nuceus, are present melatonin receptors that react to this hormone and synchronise the nuclues to the 24 HRS day/night RHYTHM thus informing the brain when it is day and when it is RIGHT

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