Bob..thanks for the reply. Your approach to letting your work associates know of your PD helped me with my strategy. I am amazed and frankly very impressed with the expertise of the group. I've got some studying to do to keep up with the medical terminology. It's great. I found it interesting that I too come from a rural background with lots of exposure to farm chemicals, well water, etc. I also suffered a brain concussion in a car accident in 1962. Someone was asking... Bob, the deprenyl doesn't seem to affect me at all. I take 5mg twice a day. My left hand tremors and stiffness are getting progressively worse so have got to find something else. Finding you and others thru Internet has opened a whole new world for me. Thanks....Jerry ([log in to unmask])