Jazzercise was founded by Judi Sheppard Missett in 1969. The workout program offers a fusion of jazz dance, resistance training, pilates, yoga and kickboxing. The program has positively affected millions of people world wide. Benefits include endurance, strength, flexibility and an overall "feel good" factor. Its never to early to pass these benefits on to children. Today, about one in three American kids and teens is overweight or obese, nearly triple the rate in 1963. With good reason, childho …