Exercise may help teenagerss -- especially boys -- quit smoking, according to results from a randomized trial.

A tobacco cessation program for West Virginia high school students was 48% more effective at getting kids to quit over six months when it included a physical activity component, Kimberly Horn, EdD, of the West Virginia University School of Medicine in Morgantown, and colleagues found.

This overall advantage reached only a trend toward significance at P=0.066 compared with the nonexercise version, although both were significantly better than results with just a brief advice session, Horn and colleagues reported in the October issue of Pediatrics.

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