What is melatonin and does it help with jet lag and insomnia?

Author : News Master Published: December 25, 2019

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Some jetsetters, shift workers and insomniacs use melatonin to help them nod off or stay asleep. What is it? How does it work? Is it safe? And what don't we know about it yet?

from The Sydney Morning Herald National Headlines https://ift.tt/34V7tGe
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