And practically how do you see human beings seperating this brain, and nuerons, endorphins, hormones, etc. From the rest of our body so we won't feel pain (in its many forms)? I'm not here to speak semantics of what is reality or what is not, and what the brain and body constitutes and what they produce, cartesian dualism, basic biology or any of that..My point is the human condition is "suffering", as most of us know it, not those into science, transcedentalist, bodis and other assorted "specials", we need a practical way to minimize this suffering.
Well who controls the release chemical and electrical signals to stimulate your neurons?
I think that people continually pushing their bodies beyond the limits of what is considered scientifically possible is testament to our growing ability to eliminate our own self imposed limitations.
Self-immolation by Monks who use to set themselves on fire and sit silently until they died is evidence of our innate abilities to transcend pain.