Judging from new data on the sale of sleeping pills, millions of Americans are having problems getting a good night’s rest. Inflammation now appears to be a major risk factor for heart disease, cancer, stroke, diabetes and even obesity. Laboratory studies also suggest sleep deprivation may elevate the body’s production of stress hormones, boost blood pressure and increase substances in the blood that are responsible for increasing inflammation in the body. Sleep deprivation can also lead to disruptions in the way the body regulates blood sugar, which can result in an increased risk of diabetes. Sleep deprivation could lead to weight gain by disrupting production of the appetite regulating hormones ghrelin and leptin. Those who got six hours of sleep were just 23 percent more likely to be substantially overweight. The same study showed that people who got only five hours of sleep had a 50 percent higher risk than those who were getting a full night’s rest. They found that people between the ages of 32 and 49 who slept four hours or less per night were 73 percent more likely to be obese than people who reported sleeping between seven and nine hours per night. Last year, researchers at Columbia University in New York published an analysis of data from nearly 10,000 people nationwide collected between 19. Perhaps the most striking link between sleep and disease comes from studies showing that the less people sleep, the more likely they are to become obese and, as you know, obesity increases the risk of a long list of diseases.
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