jet lag
The tiredness and broken sleep that come from crossing time zones faster than your body clock can adjust to the new local time.
Where it comes up
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01
Is it okay to take melatonin every night?
Is melatonin safe to take every night? How the body's nighttime signal works, what it helps and which dose and timing make sense, with a word on children.
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02
How do I get over jet lag faster?
Why you’re wide awake at 3am after a long flight, why flying east is harder, and how to time light and dark so your body clock catches up sooner.