Haven't pesticides, weed killers, and fertilizers been used for a long time on
farms? If a toxic environment plays a role in a person developing Parkinsons
Disease then I would suspect all the "stuff" that one could be exposed to on a
farm would not be good. During my teens (the '70's), my family lived on the
north shore of Oahu in a sugar plantation town with a sugar mill. Both my
parents now have Parkinson's and apparently the number of Parkinson patients in
this town is quite high.

Karen
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Karen W. Webb
Star Crowned Goldens
Ridgecrest, CA
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http://www.ridgecrest.ca.us/~starcrwn/scgmain.htm