Personal trainer Gunnar Peterson, whose clients include Jennifer Lopez and Angelina Jolie, is up for the challenge. He takes a no-nonsense approach to fitness. Get tips from Gunnar Peterson to up the ante on your fitness routine. See more »

Get tips for a healthier you as the personal trainers to the stars answer some of your health and fitness questions. See more »

Fitness trainer and chiropractor, Dr. Greg Vanvakaris, has helped actress Annie Potts and other celebrities who need rehabilitation as well as regular exercise. Get fitness tips from Greg Vanvakaris to help you get in shape safely. See more »

From stars to politicians, Tracy Sundlun has trained some of the most well-known people to run marathons. Get fitness tips from Tracy Sundlun to help you reach the finish line. See more »

The martial arts expert and stuntman behind some of your favorite action movies, Dave Lea has put some of the world's most famous models and actresses through rigorous exercise regimens. Get fitness tips from Dave Lea to ramp up your fitness routine. See more »

Cheryl Ingram has been training Leeza Gibbons for years and offers some tips on how to keep in shape despite a busy lifestyle. Get tips on maintaining a fitness routine that works with your busy schedule from Cheryl Ingram. See more »

To Dan Isaacson, fitness is more than just personal training. He's a health and fitness expert who can transform your body and your health. Get tips on forming a simple, straightforward fitness routine that you can stick to. See more »

Rob Garcia is Oscar de la Hoya's conditioning coach, and he worked with the 1996 U.S. Olympic Boxing Team. Get Garcia's training secrets on how to acquire a lean, mean body. See more »

Steve Ramsbottom is a fitness expert who pulls no punches when it comes to getting in shape the right way. Get tips from personal trainer Steve Ramsbottom to turn up the heat on your fitness routine. See more »