Based on several studies, people who get less than four hours of sleep per night are more than more likely to be obese (70 percent) compared to those who get seven to nine hours of sleep.

Lack of sleep lowers leptin, a protein that restrain appetite and tells the brain when the stomach is full. Not having enough sleep also slows down insulin production, an agent responsible for regulating blood sugar. In short, not getting enough rest disturbs your body’s ability to burn off extra calories.
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