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Swathy comes to India form America throu...

Swathy comes to India form America through air after a long journey,she suffers with jeting. Find out the reason

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Circadian Rhythm is the 24 hours cycle of biological activities associated with natural periods of light and darkness, Eg : Sleep wake cycle ,body temperature appetite etc.
When we travel across countries/ continents with different time zones the circadian rhythm is disturbed and we suffer from sleeplessness . loss of appetite, headache etc. which is called jetlag, After a day or two the body regains its normal functioning.
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