Jim Stoppani's Encyclopedia of Muscle & Strength About the Author Jim Stoppani, PhD, is senior science editor at Muscle & Fitness, Muscle & Fitness, Hers and Flex magazines. He is the host of the popular Muscle & Fitness online training and nutrition video series M&F Raw and a frequent contributor to Bodybuilding.com. One of the foremost researchers in the field of exercise science, Stoppani served as a postdoctoral research fellow at Yale University School of Medicine, where he investigated the effects of exercise and diet on gene regulation in muscle tissue. For his groundbreaking research, Stoppani was awarded the Gatorade Beginning Investigator in Exercise Science Award in 2002 by the American Physiological Society.