No exercise, more than couch, tied to fat in kids

For kids, time spent inactive seems less of a factor in higher body fat than does a lack of exercise, according to a new study published in the Journal of Paediatrics.
Researchers found that the more minutes kids spent exercising at the pace of a fast walk each day, the lower their body fat percentage was. But the time they spent as couch potatoes made no difference, according to results.