Brazilian Jiu-Jitsu was developed with using leverage and techniques against those bigger, stronger then you. Most fights end up on the ground, and Brazilian Jiu-Jitsu is one of the best ground combat martial arts. It is constantly evolving the present day needs and situations, with new techniques being developed and discovered. With real-world application, and constantly being tested in MMA, Brazilian Jiu-Jitsu is proven to be effective for Self-Defense.