What does it mean to be masculine? In his fascinating new book, best-selling author, speaker, and high-performance coach Lewis Howes asks this very question.Whether it’s the jock, the playboy, or the fighter, Lewis breaks down the different masks that men unknowingly wear to hide their authentic selves. Watch “The School of Greatness” host discuss masculinity, vulnerability, and authenticity in this eye-opening episode of Impact Theory with Tom Bilyeu.