Why We Eat Too Much

According to a recent article in the International Journal of Obesity, researchers from the University of Alabama have uncovered ten reasons why people overeat. The Detroit Free Press passes along the top three:
  • We don't get enough sleep. Studies on animals and humans have shown that too little sleep increases appetite. Other studies have found that fewer hours of sleep at night are associated with being overweight.
  • We have more air conditioning. As the temperature goes up, appetite goes down and we tend to burn more calories, say scientists (and people who live in the Bahamas). But when air conditioning keeps temperatures even, so the thinking goes, our bodies expend less energy (calories) to stay cool.
  • Disrupted hormones. DDT, PCBs and other industrial chemicals can mess up our metabolism, say scientists. Maybe that's why we're too fat.
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