If I could only do a single exercise, it would be deadlifts. Deadlifts work more muscle groups than any other movement as the deadlift is a full body movement. Deadlifts keep me young and there is a synergy between physical strength and mental strength where they feed off of each other.
“I don’t believe in using steroids. If a man does not have enough testosterone to create a nice hard muscular body, he should take up ping pong.”
~ Steve Reeves