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The bad news is that rates of overweight and obesity （肥胖） continue to rise, particularly among men and children, some as young as 2 years old. The study, from researchers at the US Centers for Disease Control and Prevention(CDCP), appears in the April 5 issue of the Journal of the American Medical Association.
 What’s particularly alarming is that one of the biggest increases in overweight and obesity was seen in children. The researchers found that 17.1 percent of kids were overweight in 2004, compared to 13.9 percent in 2000. Even the youngest children weren’t immune to this trend. In children between 2 and 5 years old, 13.9 percent were overweight in 2004, compared to 10.3 percent in 2000.
 The report also found the rate of obesity among men was up to 31.1 percent in 2004, vs 27.5 percent in 2000.(男性中超重的人达到31.1%,而2000年的时候,这一数字只有27.5%)
 “Diet and exercise are key factors in preventing chronic （慢性的） diseases and delaying aging,” said Dr. Luigi Fontana, an assistant professor of medicine at Washington University School of Medicine in St. Louis, and an investigator(投资者 ) at the Italian National Institute of Health, in Rome.