Discovery May Prevent Jet Lag
The study centers on the hormone vasopressin, thought to have a role in maintaining our internal clock.
Researchers genetically engineered mice that do not respond to vasopressin. Both engineered and normal rodents lived in a set cycle of light and dark for 2 weeks. Then the researchers changed the light cycle by eight hours. And the vasopressin-insensitive mice recovered from their induced jet lag much more quickly than did their hormone-sensitive peers.
Source: Huffington Post