A recent study shows that sleep and weight gain is a two-way street. Previous research seemed to indicate that lack of sleep led to weight gain. However, in a recent study published in Cell Metabolism in November 2007, researchers found that a high-fat diet may in fact be a cause of disrupted sleep, thus leading to further weight gain. In this study, mice fed a high-fat diet gained weight and showed a disruption in their circadian clock. These mice, after initially being fed a high-fat diet ate extra calories when they should have been sleeping or resting, and it was these extra calories that led to weight gain. So, avoid this vicious cycle by eating a diet that is balanced and moderate in fat.
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