Teenage Fitness : Celebrated trainer and the Today show fitness expert Kathy Kaehler is one of Hollywood's most sought-after fitness trainers. What Kathy has done for Julia Roberts, Drew Barrymore, Cindy Crawford, among many others, she will do for you. Teenage Fitness is your ultimate fitness source. Her mission is to keep you fit for life. Reflecting on her own body image and eating problems as a teenager, Kathy will show you how to have a healthy respect for your body.