Sleep Loss Boosts Appetite, May Encourage Weight Gain

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Researchers at the University of Chicago have found that partial sleep deprivation alters the circulating levels of the hormones that regulate hunger, causing an increase in appetite and a preference for calorie-dense, high-carbohydrate foods. The study, published in the 7 Dec. 2004 issue of the Annals of Internal Medicine, provides a mechanism linking sleep loss to the epidemic of obesity.

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