Book excerpt: With a simple, scientific program to build muscle and boost testosterone, this e-short from the editors of Muscle & Fitness will help you sculpt the perfect male physique—in just three weeks! As group training director for Men’s Fitness and Muscle & Fitness, Sean Hyson, C.S.C.S., has built his career around helping men just like you build lean, powerful muscle, maximize their strength, and improve their physical and emotional health. Now, the secrets of more than a decade of authoritative research into exercise, nutrition and supplementation are boiled down into one effective, no-B.S. plan for maximum muscle gain.