Chad Waterbury is a neurophysiologist with a Masters degree from the University of Arizona, and he is currently enrolled in the Doctor of Physical Therapy program at the University of Southern California. He is the author of Huge in a Hurry by Rodale Publishing and has been featured in Mens Health, Mens Fitness, Fight!, Showtime, and Chicago Tribune. Mens Fitness United Kingdom (UK) named him one of top 25 trainers in the world. Waterbury works with athletes in the Ultimate Fighting Championship (UFC), National Basketball Association (NBA), National Hockey League (NHL), and Major League Baseball (MLB). He also has served as the Director of Strength and Conditioning for the Rickson Gracie International Jiu-Jitsu Center.