Are there really pressure points that disables a body?
Not true. Not true either. Pressure points exists but the results you see are not true. Pressure points are unpredictable, so sometimes what causes pain for one person, will kill or knockout the other person. It's unreliable because every person is different. The most infamous pressure line is the funny bone or aka radial nerve that starts from the pinky, swirls around your wrist and forearm until it ends in the joint of your elbow, wraps around on the inside of your bicep and curls towards your shoulder. Putting pressure on that or striking it, will deaden or inflame the nerve, causing weird sensations or even minor paralysis. Chokes seen in MMA also sometimes target the pressure blood vessels on the side of the neck. What people don't understand about pressure points is that they need to transfer the power deeper into the body. What they usually do is try to poke a finger or use some kind of external speed strike, that only damages the surface. Thus the "results" they get is "pain". It is not anything more than that. And perhaps that is how it should be, since if they knew how to do it, they would then deserve the knowledge.