Walking to school, sports tied to teen weight

(Reuters Health) - Teens who play a couple of team sports and walk or bike to school are less likely to be overweight or obese, says a new study.

Researchers found that of more than 1,700 teens, those who played on at least two sports teams per year were 22 percent less likely to be overweight or obese than those who did not. Those who walked or biked to school four to five times per week were 33 percent less likely to have weight problems.

The findings, however, can't prove those activities prevented the weight problems, or whether something else could explain the link.

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