This is my prospective from growing up in the USA during the 1970's and 80's, So I would like to see if my remembrances match with the reality of the time. So if you were born before me, your prospective would be greatly appreciated.
It seems that in the USA from about 1978 to 1989, magnetic based devices were not widely advertised in the mass media nor were they available in most stores. I can't recall seeing them anywhere when I was going to high school or before. I do remember seeing the copper bracelets for arthritis. The theory was copper absorbed transdermaly would help the arthritis. I was sceptical of this. I do remember reading about magnetic healing devices from the first few decades of the 19-hundreds, but I though that that was old BS that would never again darken the American mind-scape.
Then around '89 or '90 I first saw magnetic bracelets and stuff. My first though was, "this was old news, no one will ever by this crap. This debunked crap will never catch on.". Then as the 90's progressed more and more magnetic crap filled the store shelves.
To anyone out there with a historic prospective, would you agree with my evaluation that in the 70's and 80's the magnetic health crap was an insignificant fraction of what it would become in the 90's.
Edit: debunker changed to debunked