noun

melatonin

melatonin

Melatonin helps regulate sleep cycles.

Melatonin helps regulate sleep cycles.

He takes melatonin to help him sleep.

He takes melatonin to help him sleep.

((melatonin)) as a subject Melatonin helps regulate sleep cycles.

to take ((melatonin)) to consume melatonin He takes melatonin to help him sleep.

Synonyms: sleep hormone

From Greek 'melas' (black, dark) + 'tonos' (tone), related to its production in darkness.

Think 'mellow tone' for the night. It sets a mellow, relaxed tone for sleep. The 'mela-' part relates to darkness.

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