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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .Jet lag.
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3 .Jumping a few time zones causes problems with sleep and even digestion.
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4 .But new research means we could be a step closer to preventing this voyager's vexation.
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5 .The study centers on the hormone vasopressin, thought to have a role in maintaining our internal clock.
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6 .Researchers genetically engineered mice that do not respond to vasopressin.
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7 .Both engineered and normal rodents lived in a set cycle of light and dark for 2 weeks.
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8 .Then the researchers changed the light cycle by eight hours.
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9 .And the vasopressin-insensitive mice recovered from their induced jet lag much more quickly than did their hormone-sensitive peers.
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10 .The work is in the journal Science.
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11 .Jet lag may seem like a minor annoyance.
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12 .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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13 .You cannot simply knock out vasopressin signaling permanently,
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14 .that would have negative effects on behavior and brain activity.
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15 .But a drug that temporarily suppresses vasopressin to reduce jet lag may be a frequent flier's dream.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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