Epidemic of youth obesity . . .

In the last three decades, the number of overweight young Americans has tripled, with no sign the trend is abating. . . .

At the National Institutes of Health, no fewer than 16 studies are being financed to study how to change environments to encourage a healthier lifestyle for young people--from day care and after-school activities to educating children about food. "There is a panoply of forces that are all conspiring to get us to eat more and exercise less," says Dr. Susan Yanovski, director of an institute obesity and eating disorders program.

Young Americans eat, move and live quite differently than generations before them.

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