Well... Setting aside the fact that I too believe in 'mind over matter', there are a lot of documented examples of 'unbelievable' phenomenon occuring as a result of people changing their mind or just thinking differently. Some come to mind:
1. When a person suffers from multiple personalities their dominate, i.e. writing hand, can change from left to right, or right to left.
2. In the same case, when another personality expresses itself eye color can change. (Yep, hard to believe, but true.)
3. In the case of 'The Wolf boy of Avingon' (A boy raised from infanthood by wolves) the boy could reach his hand into a pot of boiling water unphased. Additionally he could run naked through the snow.
4. I don't know of a specific study, but I'm sure there have been many done (Google Placebo vs. Propecia) people given a placebo have regrown hair.
5. Placebos (Which contain no medication, and are only effective as a result of belief in them) have been shown to aid people in: Losing weight, regrowing hair, overcoming anxiety, overcoming chronic pain, growing muscle. Just about anything you can think of.
The fact of the matter is that the human mind and the human thought processes have a HUGE effect on the body, as well as a lot of other things, though this isn't a Metaphysics or a Quantumphysics thread.
So is it possible? Absolutley! Will it work for you? It depends on how much effort you put into it. You may gain a bit from just the hypnosis, but I'm sure that if you combined the hypnosis with manual work you would get above normal gains. Probably much above normal gains.
Anyhow, at the absolute worst the tapes will do no more damage than the RoP or Leech Oil or Bee Stings, right?
