I do Gracie Jiu-jitsu. It's the most logical, efficient form of self defense (close-quarters submission grappling). Sparring is a calm, chess-like process. It i

I do Gracie Jiu-jitsu. It's the most logical, efficient form of self defense (close-quarters submission grappling). Sparring is a calm, chess-like process. It is like solving real-time life-or-death body mechanical problems. It leaves you with a lean and strong body and gives you enormous confidence around other people.