What hormone secreted by the pineal gland controls sleep-wake cycles and several other processes?

What hormone secreted by the pineal gland controls sleep-wake cycles and several other processes?

  • Correct Answer: estrogen
  • testosterone
  • t3
  • melatonin

Explanation: The pineal gland is a tiny gland located at the base of the brain. It secretes the hormone melatonin . This hormone controls sleep-wake cycles and several other processes.

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