Parkinson's disease is the world's fastest growing brain disorder, and exposure to environmental toxicants is the principal reason. In this paper, we consider alternative, but unsatisfactory, explanations for its rise, including improved diagnostic skills, aging populations, and genetic causes. We t …
Interesting. One of the chemicals they reference is tetrachloroethylene. According to this Wikipedia article:
My grandfather had Parkinson’s. I would imagine that he had plenty of exposure in his work as a mechanic from about 1925 on.