Go west, old man; Biology.(Elderly mice with jetlag are prone to death)

From: The Economist (US) | Date: November 11, 2006 | Copyright information

Jetlag can be fatal if you are flying east--and you are an elderly mouse

TINKERING with the circadian clock, the day-and-night cycle in the physiological processes of all living beings, is rarely a good idea. Poor health and accidents are more common in those who fly frequently or do shift work. Now a new study shows that the direction in which the clock is changed affects the well-being of an individual--at least when the individual is an old mouse.

Researchers led by Gene Block and Alec Davidson of the University of Virginia noticed that, in an earlier experiment, a ...

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