One of the latest threads is about carbon monoxide exposure / poisoning. One of the test that the Dr wanted run was CO content in my blood, as I work on autos. I worked in different repair shops for 12 + years that didn't have an exhaust removal system (the dealership I work at now does). So it is possible that I to was exposed to a high level of CO before onset of PD. Jon Meyer 41/2 ([log in to unmask]) another Hoosier _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]