Question: how gain muscle mass fast?
Answer: Increase Your Training Volume. ... , Focus on the Eccentric Phase. ... , Decrease Between-Set Rest Intervals. ... , To Grow Muscle, Eat More Protein. ... , Focus on Calorie Surpluses, Not Deficits. ... , Snack on Casein Before Bed. ... , Get More Sleep. ... , Try Supplementing with Creatine…