> EPE has also publish Quack items like Hulla Clarkes 'Zapper' and TENS units. I am of the opinion that TENS appears to work for many people (not all) and that there are reasonable mechanisms postulated for it to do so. You have to be careful not to throw the baby out with the bathwater. I agree wholeheartedly about people like RIFE - some may be sincere but still incorrect. TENS (transcutanaceous electrical neural stimulation?) basically delivers a lowish level electric shock with varying voltage, mark space ratio and frequency to body locations to attempt to block pain. As I simplistically understand it the application of a by no means low level masking signal causes nerve pain information to be hidden from the brain. This can be dressed up in much finer language. It is my long personal experience that various sensation signals can indeed be masked by other different sensation input. It is POSSIBLE that TENS is entirely Placebo in affect but I don't believe this is probably the case. FYI - for one magazine (possibly EPE) their TENS project was the most popular one they have ever done. Lots of desperate hurting people I guess. Russell McMahon -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.