I love how some of you jump to conclusions without ever experiencing the MA or tactic your are getting on. I myself study I martial art that involves many different martial arts(Muay Thai, Kenpo, Tung Soo Do, BJJ, Jeet Kune Do, Hapkido, etc) There are also a lot of pressure points, joint locks, etc. So I have experienced them first hand. If you are taught correctly pressure points will work 99% of the time. Also I have experienced Chi first hand. Before you go saying it is them brainwashing you to believe something or whatever. Let me tell you that I was not told what I should feel or what should happen but I felt some strange things and was actual derived of strength from my body. JamEs