Men's Fitness - Sean Hyson Sean Hyson is a Certified Strength and Conditioning Specialist (C.S.C.S.) and the group training director for Men's Fitness and Muscle & Fitness magazines. He is also the author of 101 Best Workouts Of All Time, available at 101bestworkouts.com. Feed: http://www.mensfitness.com/authors/sean-hyson/feed