Medliorate

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How to Avoid Jet Lag – Manipulating the Body’s Clocks

Posted by medliorator on June 23, 2008

Normally, the body’s natural circadian clock in the brain dictates when to wake, eat and sleep, all in response to light. But it seems a second clock takes over when food is scarce, and manipulating this clock might help travelers adjust to new time zones

“A period of fasting with no food at all for about 16 hours is enough to engage this new clock,” said Dr. Clifford Saper of Harvard Medical School, whose study appears in the journal Science.

Saper and colleagues knew that when food is scarce, animals are able to override their normal biological clock to improve their chances of finding food.

Studies have shown that mice fed only during the time when they normally sleep shift their body clocks to this new schedule.

Skip the pretzels: starving may fend off jet lag [Yahoo Health]

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