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This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?

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Jet lag.

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Jumping a few time zones causes problems with sleep and even digestion.

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But new research means we could be a step closer to preventing this voyager's vexation.

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The study centers on the hormone vasopressin, thought to have a role in maintaining our internal clock.

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Researchers genetically engineered mice that do not respond to vasopressin.

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Both engineered and normal rodents lived in a set cycle of light and dark for 2 weeks.

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Then the researchers changed the light cycle by eight hours.

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And the vasopressin-insensitive mice recovered from their induced jet lag much more quickly than did their hormone-sensitive peers.

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The work is in the journal Science.

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Jet lag may seem like a minor annoyance.

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But for those who travel frequently or work unusual hours, it's a chronic problem that can increase the risk of hypertension and obesity.

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You cannot simply knock out vasopressin signaling permanently,

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that would have negative effects on behavior and brain activity.

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But a drug that temporarily suppresses vasopressin to reduce jet lag may be a frequent flier's dream.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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