Brazilian Jiu-Jitsu is a martial art, combat sport and self-defense system that can be trained for sport or self defense. The focus of Jiu-Jitsu is submission grappling (ground fighting). It teaches a person to successfully defend against an opponent using leverage and technique. The fundamental ground moves are those that neutralize, immobilize, choke or apply pressure or twisting to the body’s larger joints (submissions) to conquer over an adversary’s attack. Jiu-Jitsu is one of the few martial arts in which you can test your skills sparring on a live resisting opponent without having to hold back in fear of hurting your partner (commonly referred to as rolling). Both rolling and live drilling play a major part in the progression through the belts/ranks. A resisting opponent helps the student realizes their strengths, and polish their deficiencies; that way, when you need it to defend oneself, you already know what it feels like to have someone fight back.