HEALTHY LIVING
01/21/2013 08:58 am ET

What Is Jet Lag? Circadian Rhythm Can Explain Cause & Cure (VIDEO)

Jet lag: after days of travel, it's there when you're sleeping and when you're awake.

Most of us know what jet lag feels like. According to the American Sleep Association, nearly 93 percent of travelers will experience it at some point. But do you know why it's happening?

Watch the video above to learn more. And don't forget to weigh in by leaving a comment at the bottom of the page. Come on, talk nerdy to me!

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