Dear friends, I went to see my neuro this morning, got my mirapex px. Now, for the purpose of this post. He said that a man in his early forties had been there yesterday. He was diagnosed with P.D. right then and there. He had smoked marijuana for years. Doc asked me to ask the fine people on the Parkinson's list if they had ever heard of P.D. being CAUSED by marijuana. He had not. Thanks to all who respond. Jacob