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why do I get jet lag?

Jet Lag

Why do we experience jet lag? A trip from New York to London requires traveling through five time zones. You may arrive at 9am, but your body thinks it's 4am. Why? Circadian rhythms are responsible. They are internal biological changes that occur on roughly a 24 hour cycle; circadian rhythms are your biological clock. How do you reset your clock? Sunlight will reset your clock to local time, so get outside! But, it's important to expose yourself to sunlight at the end of your sleep cycle, so your body interprets the light as dawn. Be sure to sleep on the plane.

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