How hunger heals jet lag.
Jet lag got you draggin'?
This is Sandra Tsing Loh with the Loh Down on Science
and with a new solution to jet lag. Hunger!
Apparently, mammals have TWO biological clocks.
The CIRCADIAN clock regulates sleeping and eating based on daylight. But in really hungry times a second clock kicks in.
Clifford Saper of Harvard Medical School tested mice lacking the gene B-M-A-L-1, which controls the body's clock.
First BMAL 1 was introduced to a part of the brain called the SUPERCHIASMATIC NUCLEUS. Mice adjusted their sleep to a daylight-based schedule.
Then the gene was introduced to another part of the brain called DORSOMEDIAL NUCLEUS. NOW mice adjusted ONLY to a schedule based on hunger.
When food is scarce, the hunger clock overrides the circadian one.
Result of these brainy manipulations? A possible new way to prevent jet lag.
Saper suggests long-distance travelers starve themselves for sixteen hours prior to landing.
To reset your clocks? Pig out immediately upon arrival.
It's yet another excellent reason to avoid airline meals. And save a few hundred dollars in the process! That second tiny carry on, though. That's worth the money.