How to Use melatonin in a Sentence

melatonin

noun
  • How does melatonin work in the body?
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • Sales of over-the-counter sleep aids such as melatonin are way up.
    — Jon Marcus, BostonGlobe.com, 15 June 2023
  • Take melatonin a few hours after the last meal of the day.
    — Ayesha Gulzar, Verywell Health, 5 May 2026
  • What are melatonin’s short-term side effects?
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • Thanks to their genes, mice of the poor-sleeping strain don’t make melatonin.
    — Megan Molteni, WIRED, 28 June 2018
  • But what is the best time to take a melatonin supplement for a good rest?
    — Michael Franco, New Atlas, 4 Nov. 2024
  • The new findings did not explain why melatonin may harm the heart.
    — Stephanie Brown, Verywell Health, 10 Nov. 2025
  • And in this current climate that's as good as a dose of melatonin.
    — Caroline Hallemann, Town & Country, 31 May 2020
  • If melatonin works for you, keep using it, Zeitzer says.
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • If taking melatonin, take it a few hours after the last meal of the day.
    — Ayesha Gulzar, Verywell Health, 21 Jan. 2026
  • Is melatonin safe for children?
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • Supports melatonin and wind-down.
    — Allison Palmer june 2, Fort Worth Star-Telegram, 2 June 2026
  • Blue-wavelength light tells the brain to suppress melatonin and stay sharp.
    — Allison Palmer june 2, Fort Worth Star-Telegram, 2 June 2026
  • Blue-wavelength light tells the brain to suppress melatonin and stay sharp.
    — Allison Palmer updated June 4, Sacbee.com, 4 June 2026
  • Since then, our evenings have been brighter and our melatonin diminished.
    — Literary Hub, 17 June 2026
  • The hype around melatonin is a bit misleading.
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • How effective is melatonin as a sleep aid?
    — Lori Youmshajekian, Scientific American, 19 Nov. 2025
  • Cuban takes melatonin, a sleep-aid hormone, before bed.
    — Andrew Zucker, Air Mail, 3 Jan. 2026
  • For melatonin, timing matters far more than dose.
    — Allison Palmer, Sacbee.com, 15 May 2026
  • To avoid a melatonin hangover, reduce your dosage.
    — Claire Bugos, Verywell Health, 1 Oct. 2025
  • In totally blind people who cannot see light, melatonin is a big one.
    — SELF, 4 Sep. 2018
  • As the day ends, your brain releases melatonin to help prepare you for sleep.
    — Lauren Panoff, Verywell Health, 26 Feb. 2026
  • Light tells the brain to stay awake and suppresses the release of melatonin.
    — Michelle Icard, CNN, 15 Mar. 2022
  • This portion of the brain instructs the pineal gland to secrete melatonin.
    — John Schandelmeier, Anchorage Daily News, 21 Dec. 2019
  • And make sure to get out in the daylight when the sun is out, to boost melatonin production.
    — House Beautiful, 8 Apr. 2023
  • Drinking too much, or too late in the day, can suppress melatonin and disrupt sleep.
    — Lauren Panoff, Verywell Health, 9 Dec. 2025
  • Blue light jolts us awake, blocking our body’s impulse to produce melatonin when the sun fades.
    — Adriane Quinlan, Curbed, 28 Apr. 2026
  • That's because blue light stops the release of melatonin, the body's sleepy time hormone.
    — Sandee Lamotte, CNN, 7 Feb. 2022
  • Remove that light source and your brain stops suppressing melatonin.
    — Allison Palmer, Miami Herald, 31 Mar. 2026
  • The study hasn’t been peer-reviewed and doesn’t prove melatonin causes heart failure.
    — Allison Palmer, Charlotte Observer, 15 Apr. 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'melatonin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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