A study published in Pediatrics by researchers at the University of Montreal offers positive news for Wii-loving teenagers and their parents: games such as Wii Sports and Dance Dance Revolution can bring them closer to recommended physical activity levels. The study is the first of its kind. "Teenage exergamers - people who play video games that require physical activity - are most likely females who are stressed about their weight. On average, they play two 50 minute sessions per week," said study author Jennifer O'Loughlin of the university's Department of Social and Preventative Medicine. "As less than 15% of children and adolescents currently participate regularly in physical activity, we are pleased to report that exergaming can add to regular physical activity to attain physical activity guidelines" Current guidelines recommend that youth engage in 60 minutes of moderate or vigorous physical activity most days of the week.And it won't make a difference in how fat they get, either.