I don't know Ray. My Goddaughter worked in PD research with primates and she said yes, nicotine is neuro-protective; however, you have to have so much of it that you would vomit. I'm 62 and smoked since I was 13, regularly since about 18 with a period of 6 1/2 years; five months and nine months quit. Didn't seem to help me. I have now quit again for nine months. As I recall Michael J. Fox was a heavy smoker. I think I read four packs a day in his younger years. Don't know about now but it didn't seem to help him either. Roberta In a message dated 8/6/2012 2:00:06 A.M. Eastern Daylight Time, [log in to unmask] writes: Guess I never should have quit smoking 26 years ago http://paktribune.com/news/Nicotine-protects-brain-from-Parkinsons-disease-2 52118.html Ray Rayilyn Brown Past Director AZNPF Arizona Chapter National Parkinson Foundation ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn