Re: resp to Kokyu Rokyu thread
Lee, that smells fishy to me. I dont think there is anything inherent in IS/IP training that would necessarily cause a psychotic break in an otherwise healthy individual. And I sure as spit dont think evil spirits are waiting to jump in if I exhale a certain way.
Way more likely that over the fullness of time, a couple folk who were already mentally ill did some training that became a focus or a trigger for their issues. Anything can do that, aikido, tennis, burgers at McDonalds, an unfortunately timed fart.... Also possible, if Phi is correct about reverse breathing raising BP, some folks may have just had strokes which can certainly change a person's mentation. No demons required.
Your caginess doesn't lend your claim any credibility at all.