Jody Evans, a 9-year-old Prince George's County fourth grader, loves Tae Kwon Do. She enjoys it so much that she spends four days a week practicing with her coach, Master Chien.

It's also part of what keeps her healthy, and now Jodi wants to pass on the techniques she has learned to help combat childhood obesity. Evans is one of 20 kids nationwide selected to serve on the Youth Advisory Board for the Alliance for a Healthier Generation.