Kodanjaclay
Blue Belt
I think that Bruce is right. In the original Iron Shirt one uses a breath called "pressing breath". It is not healthy. It could cause an aneurism, stroke or other issues, but I'm not willing to say that that is a "Qi' result. Merely the result of pressure building up in the head. If one uses that breath, then I could see it, but remember most advocate pulsing breath, which does not have the same harmful effects.