Different versions of Jiu-Jitsu have been around for centuries. One main reason it been around so long is it can help protect a person from an opponent who is bigger than his or herself. This art form emphasizes the use of leverage and timing over strength and speed. It’s weaponless and concentrates on taking your opponent down, grappling on the ground, and then submitting them. You will also gain great flexibility while learning Jiu-Jitsu.