How to beat jet lag  SEP 26 2013

In the 1980s, Charles Ehret developed an antidote to jet lag called The Argonne Anti-Jet-Lag-Diet.

After experimenting on protozoa, rats, and his eight children, Ehret recommended that the international traveler, in the several days before his flight, alternate days of feasting with days of very light eating. Come the flight, the traveler would nibble sparsely until eating a big breakfast at about 7:30 a.m. in his new time zone -- no matter that it was still 1:30 a.m. in the old time zone or that the airline wasn't serving breakfast until 10:00 a.m. His reward would be little or no jet lag.

The diet was adopted by US government agencies and other groups as well as Ronald Reagan, but it difficult to stick to. Recently, researchers in Boston have devised a simpler anti-jet lag remedy:

The international traveler, they counsel, can avoid jet lag by simply not eating for twelve to sixteen hours before breakfast time in the new time zone-at which point, as in Ehret's diet, he should break his fast. Since most of us go twelve to sixteen hours between dinner and breakfast anyway, the abstention is a small hardship.

According to the Harvard team, the fast works because our bodies have, in addition to our circadian clock, a second clock that might be thought of as a food clock or, perhaps better, a master clock. When food is scarce, this master clock suspends the circadian clock and commands the body to sleep much less than normally. Only after the body starts eating again does the master clock switch the circadian clock back on.

Totally trying this the next time I have to travel, although the Advil PM/melatonin combination my doctor suggested worked really well for me on my trip to New Zealand. (via @genmon)

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