4. You MUST squat and deadlift if you are going to reach your bodies growth potential. Think it through. Doing squats or deads activates 70-85% of the bodies overall musculature in one move. Doing a set of curls maybe 3-5%. Which sends a big signal that the body better get better at synthesizing protein and better at handling the need to grow as a unit? You will NEVER reach your potential without doing the squats and deads.