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melatonin

melatonin

19 4.9
A natural chemical from the brain that helps control sleep and wake times
  • noun
  • /ˌmɛləˈtoʊnɪn/
  • Specialized
: melatonina
  • As night falls, the body produces more melatonin, signaling that it's time to sleep.
  • melatonin, a hormone
  • using melatonin

And in the elderly, that's when melatonin might be a viable option.

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Examples

  • Around dusk, our bodies secrete the hormone melatonin, which helps prime us for sleep.

  • And so, so melatonin is the hormone that gets turned on when it's dark.

  • So when it's dark out, our melatonin is the highest.

  • So this is going to put me to sleep too because it has melatonin in it.

  • Or sometimes I just take melatonin and close my eyes, drink a tea and just hope for sleep.

  • Yep, we need melatonin, and we only get this when we sleep in the dark!

    Blog text (27)
  • You must take your melatonin when you're not getting a lot of light.

  • Because when melatonin goes up, we tend to feel sleepy.

  • I like melatonin for jet lag or for sleep while you're traveling.

  • Interestingly, the levels of this molecule increase significantly with complete darkness, when melatonin is produced abundantly.

    Academic text (2015)

Surface Forms

melatonin singular
melatonins plural

Etymology

Melatonin comes from Greek roots: melan- meaning 'black', the same root as melanin, the skin pigment, and -tonin from a group of brain chemicals like 'serotonin'. Because melatonin increases when it gets dark, you can remember it as the body's 'night' chemical that helps control sleep.