“If a child eats a fast-food cheeseburger and french fries with a 20 ounce soda for lunch, he would need to run for 3.5 hours to burn off the calories from that meal,” said Dr. Denise Wilfley,...

Hannah rides into dance class every Wednesday night in a chair decked out with Elvis stickers. She goes through the stretches, anxiously waiting to learn a new dance move and sing along to the latest Katy...