I'm reviewing some diet books for a Cooking Channel article and one of them—The 8-Hour Diet, by Dave Zinczenko—advocates sleeping in as one of the keys to weight loss. (His premise is based on the benefits of intermittent fasting. By confining your eating to just eight hours a day, he says, the pounds will melt off and you'll be healthier. An oversimplification, but I've just read the intro so far.)
A new study out today gives yet another nod to those addicted to the snooze button. The study, published in Sleep, found that men and women who slept just 4 hours a night had more reason to overeat than those who slept for nine hours...but their reasons differed. Sleep-deprived men had increased levels of ghrelin—the appetite-stimulating hormone, while women had lower levels of a hormone (GLP-1) linked to satiety.