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Sleeping in front of the TV could make women gain weight

Turn the lights and the TV off during sleep to keep extra weight off.

That’s the takeaway from a new National Institutes of Health report exclusively on women, which finds that sleeping in a room with a light or television on is linked with gaining weight. That’s because, the researchers believe, a sleeper’s circadian rhythm is disturbed and the sleep hormone melatonin is suppressed.

Researchers analyzed data on 43,722 U.S. women ages 35 to 74, who had no history of cancer or cardiovascular disease, and who were not shift workers, daytime sleepers or pregnant when the study began. The scientists took baseline measurements of the subjects’ height, weight and body mass index (BMI) at the beginning of the study period, and recorded those measurements during a follow-up five years later.

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