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Circadian Rhythms

Circadian Rhythms

A study by researchers in Italy, published in the October 30, 2014, issue of Genome Biology, describes genetic adaptation to the human circadian clock that was driven by day length in various latitudes. People with circadian rhythms favorable to changes in day length more frequently survived and passed on their genes. Evidence for this was found at 84 genes known to regulate circadian rhythms and sleep cycles.


Credit: Darryl Leja , NHGRI.



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