Coach Noli provides responses to several students' questions about exercise and physical activity. He recommends drinking water before, during, and after exercise to stay hydrated. He says kids should exercise for 30 minutes to an hour per day. For jogging, he suggests starting with 15-20 minutes for kids and working up to 30-45 minutes. He cautions students to avoid diving from heights over three feet into the pool and to not stay underwater longer than comfortable.