Brazilian Jiu-Jitsu (BJJ) is a martial art and combat sport that focuses on grappling and especially ground fighting with the goal of gaining a dominant position and using joint-locks and chokeholds to force an opponent to submit. The art was based on early 20th century Kodokan Judo ,[2][1] which was itself then a recently-developed system (founded in 1882), based on multiple schools (or Ryu) of Japanese Jujutsu.

It promotes the principle that a smaller, weaker person using leverage and proper technique can successfully defend themselves against a bigger, stronger assailant. BJJ can be trained for self defense, sport grappling tournaments (gi and no-gi) and mixed martial arts (MMA) competition.[3] Sparring (commonly referred to as 'rolling') and live drilling play a major role in training, and a premium is placed on performance, especially in competition.

Brazilian Jiu-Jitsu emphasizes ground fighting techniques and submission holds involving joint-locks and chokeholds also found in numerous other arts with or without ground fighting emphasis. The premise is that most of the advantage of a larger, stronger opponent comes from superior reach and more powerful strikes, both of which are somewhat negated when grappling on the ground.

BJJ permits a wide variety of techniques to take the fight to the ground after taking a grip. Once the opponent is on the ground, a number of maneuvers (and counter-maneuvers) are available to manipulate the opponent into a suitable position for the application of a submission technique. Achieving a dominant position on the ground is one of the hallmarks of the BJJ style, and includes effective use of the guard position to defend oneself from bottom, and passing the guard to dominate from top position with side control, mount, and back mount positions. This system of maneuvering and manipulation can be likened to a form of kinetic chess when utilized by two experienced practitioners. A submission hold is the equivalent of checkmate.

Apart from learning how to defend yourself effectively against any aggressor no matter the size, Brazilian Jiu Jitsu is an excellent activity as it builds and/or increases self confidence. When you train in Brazilian Jiu Jitsu you are exercising every muscle of your body including your brain.

As for women, Brazilian Jiu Jitsu is considered the best form of real self defense against a rape attack. Brazilian Jiu Jitsu work because of BODY MECHANICS not strength. During most attacks on women a victim will end up in a bottom position. But in Brazilian Jiu Jitsu this is considered a very favorable position to effectively attack and finish the aggressor from. In fact the Gracie Academy developed a system called RAPESAFE especially tailored to woman.