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Scientists Identify New Mutation That Enables Three-Hour Sleepers


Researchers have discovered a mutation in the SIK3 gene that enables some people to function normally on just three to six hours of sleep. The finding, published this week in PNAS, adds to a growing list of genetic variants linked to naturally short sleepers. When University of California, San Fra...

Researchers have discovered a mutation in the SIK3 gene that enables some people to function normally on just three to six hours of sleep. The finding, published this week in PNAS, adds to a growing list of genetic variants linked to naturally short sleepers.When University of California, San Francisco scientists introduced the mutation to mice, the animals required 31 minutes less sleep daily. "These people, all these functions our bodies are doing while we are sleeping, they can just perform at a higher level than we can," said Ying-Hui Fu, the study's co-author.

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