The average life expectancy in the United States is estimated to be 79 for a woman and 75.5 for a man-lower than that of other developed nations. A prosperous life with too much food and too little exercise is to blame. Experts say the rapid rise in obesity and decline in physical activity are mainly responsible for high levels of cardiovascular disease in this country and many cancers. They say three-fourths of premature deaths from cardiovascular disease and half of premature deaths from cancer can be attributed to lack of a low-risk lifestyle.
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