Teenagers who are physically active in any way are less likely than their TV-watching peers to smoke, drink or take other health risks.

Researchers found that compared with teens who spent much of their free time in front of the TV, those who were active often had higher self-esteem, better grades and were less prone to risky behavior like taking drugs, smoking, drinking or having sex.

[Read](http://go.reuters.com/newsArticle.jhtml?type=healthNews&storyID=11760006&src=rss/healthNews) (Reuters)