The new bible of bodybuilding from the sought-after trainer behind YouTube's #1 fitness channel, featuring his signature science-based approach to functional training. AthleanX puts the science into strength training. This unique strength training and conditioning program--including plans for nutrition and supplementation as well as step-by-step guides to the exercises--gives users the lean, muscular, functional bodies of professional athletes. Other fitness books and programs are based on a bodybuilding model, which can make you look stronger, but Jeff Cavaliere shows you how to hit the gym without falling into the common "bro" traps: poor posture and flexibility, muscle imbalances, joint stiffness, pain, and injury. His sports-medicine-based approach centered on injury prevention has earned him his rabid, massive fanbase. In AthleanX's Train Like an Athlete, Cavaliere goes deeper into his philosophy of functional training than he ever has. The book includes 100 step-by-step photos of Jeff demonstrating proper form for injury and pain prevention as well as Jeff's essential program for intelligent training, plus nutritional and supplementation plans.