February 19, 2011
Jacob Teitelbaum, M.D.
Obesity is epidemic, and has many causes. One of them is that the average nights' sleep has dropped from nine hours a night to six and three-quarters hours a night over the last hundred years, and sleep is responsible for many weight and appetite controlling hormones, such as growth hormone, leptin, phrelin and ghrelin. So can you really sleep your way to skinny? Many sleep studies suggest you can.
How much sleep is optimal for staying thin? Between seven and nine hours is best. Less than seven hours increases the risk of obesity approximately 30 percent and adds an extra five pounds on average.
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