I think vtool stepped over the line there. the FDA shouldn't have shut parazapper down. however he may have been using some brainwashing without realising it and that's not acceptable. there needs to be more scientific data before anyone can say zappers are (or aren't) actually going to prevent or cure a disease. Hulda Clark 's book sounds scientific to me, but hey it's a book for laymen that skips peer review. her book might be right on one point and wrong on 99 others for all we know until scientists have run the necessary tests and proved each point right or wrong. moral of the story is, don't use a zapper as an excuse to not go to the doctor when you need to. just use it for peace of mind. that way at worst it's a harmless placebo, at best it's curing diseases. don't be brainwashed about it, it's just an electronic vibrator circuit.