10 years ago
A Gene That Makes You Need Less Sleep?
Since June, 1957, the Centers for Disease Control and Prevention has been monitoring America’s health habits, tabulating things like whether we smoke, drink, or sit around all day, and how many of us visit our doctors regularly and take our medications at the prescribed times. Until recently, though, one aspect of our behavior largely escaped note: the amount of time we spend sleeping. And so, in 2009, the C.D.C. decided to add a sleep dimension to its survey.
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