> It is to be regretted that some electronics magazines like Everyday > Practical Electronics have had to resort to selling into the fringe > medicine population in order to maintain circulation. EPE has also publish > Quack items like Hulla Clarkes 'Zapper' and TENS units. The Rife article > was a huge 10 pages as I recall - more than their usual mainstream > articles. I think Poptronics has also published pseudoscience articles in > the last few years. There is evidence to support the operation of TENS units. Search for "Gate control theory". This theory also explains why acupuncture, some pain killers, endorphins and adrenaline also have a pain numbing effect. Think transistors.. and the gate either allows signals through or not, both chemical and electrical stimulus can close the gate so signals either don't pass through the nervous system to the brain, or pass at a much reduced level. -- Jon Baker -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.