The Healing Codes uses 4 points in the body, the adam's apple, temples, back of jaws, and bridge of nose. There are specific protocols for different emotional and physical issues as with TFT (which I also studied) but it does go so much deeper than EFT and TFT because it gets to the spiritual roots of dis-eases in the body which are locked into the cellular structure when people have experiences which are interpreted as negative. When you do a healing code on an emotional or physical issue it facilitates the release of the energy which became locked in with beliefs and emotions that were triggered at the time of the "negative" event. (often from childhood or sometimes deeper unconscious experiences) and consequently on the energy release the whole being re-aligns the physical, emotional and mental bodies.
For the healing codes to work, one simply has to give it a fair trial. Consistency of practise is important. It is suitable for anyone who is open minded enough to explore themselves in this very different way. One has to be prepared to dis-identify from the emotions and the sensations of the body. It is a profound healing which is possible. One also begins to uncover ones true deeper nature.