Rudy and others, One of the first things I read about causes of PD was that a study had possibly linked it to areas around heavy industry, especially pulp mill towns. They thinking was that toxins were polluting the local water supply, especially ground water which feed wells. Since I am from the Pacific Northwest, and grew up in a Redwood Mill town, I found this very interesting. don't forget how to laugh (and do it often) Marling McReynolds [log in to unmask]