Now, if only I had a better superpower... http://sciencenow.sciencemag.org/cgi/content/full/2009/813/2Early Risers Are Mutants
By Cassandra Willyard
ScienceNOW Daily News
13 August 2009
Don't hate those people who are perky and efficient after only a few hours of sleep. They can't help it. New research suggests that a genetic mutation may explain why some people sleep less.
Researchers don't know exactly why some people do fine with as little as 4 hours of sleep a night, while others need 12. "We've believed for a long time that there's a genetic basis," says Paul Shaw, a neurobiologist at Washington University in St. Louis, Missouri. But scientists have only recently begun to ferret out which genes are responsible.