soccerallstar6872 soccerallstar6872
  • 15-04-2018
  • Biology
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The hormone , which is secreted by the pineal gland, influences the sleep–wakefulness cycles.

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jamuuj jamuuj
  • 24-04-2018
The hormone described above is the hormone Melatonin.
Melatonin is a hormone secreted by the pineal gland in the brain, which helps regulate other hormones and maintains the body's circadian rhythm. This rhythm is an internal 24 hour clock that plays a critical role when we fall asleep and when awake. When it is dark the body releases more melatonin. 
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cutieeeeee cutieeeeee
  • 24-04-2018
melatonin is the answer
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