Lack of sleep doesn't just make you sluggish. It also makes you ugly, researchers say. Sleep-deprived people look 4 percent less attractive, 6 percent less healthy, and 19 percent more tired than they usually do. This doesn't bode well for the sex lives of insomniacs, study author John Axelsson told MSNBC:
“A good night’s sleep does not only improve your physiological health, it will also make you look healthier and more attractive, which in turn improves the chance of better treatments in a wide range of social situations.”