Harley Pasternak, M. Sc., is a New York Times bestselling author and holds a master's of science in exercise physiology and nutritional sciences from the University of Toronto, as well as an honors degree in kinesiology from The University of Western Ontario. He is certified by the American College of Sports Medicine and the Canadian Society for Exercise Physiology. He has appeared on The Oprah Winfrey Show, Today, CNN, America's Next Top Model, Rachael Ray, and Tyra. Pasternak lives and works in Los Angeles.