LaneyMM8038 LaneyMM8038
  • 03-11-2017
  • Biology
contestada

Early sleep research began when researchers noted that physiological changes create _______ that can be measured during sleep.

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meerkat18
meerkat18 meerkat18
  • 14-11-2017
hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
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