Now, recent evidence indicates that most Parkinson's cases result from
environmental chemical pollutants.
The researchers reported that, "No genetic component is evident when the
disease begins after age 50 years. However, genetic factors appear to be
important when [Parkinson's] disease begins at or before age 50." Thus
fewer than 10% of Parkinson's cases -- only those that begin relatively
early in life -- have a genetic component.
That leaves environmental chemicals as the culprit for the vast majority
of Parkinson's, according to the researchers who conducted the twin study. In
announcing their results, they specifically pointed out that the search for
causes of Parkinson's should now re-focus on environmental chemicals such as
pesticides and herbicides.[10]
Works for me. The wife is paranoid about cockroaches. Terminix kept our
house steeped in pesticides for 25 years. No cockroaches at all tho'.
Every appliance I pulled for repair has an eighth of an inch of powdered
pesticide on it. My PD occurred at age 70. dx 69.