Hi, I have been a subscriber to this list for several months now but this is my first time writing. My dad is 52 years old and was diagnosed with PD in January of 1995. He is doing pretty well...he has tremor in his left arm and hand, shuffles a little when he walks, is slower overall.... but I think he's progressing very slowly, which is good. He has a very high energy, stressful job as an attorney and I definitely notice that when he takes a few days off to go to the beach, his symptoms are barely noticeable, but day to day, while he is working, he gets so tired and his symptoms become aggravated more. What I am concerned about, is that lately, he has been telling me that he thinks he is losing his memory. He says that he cannot remember things that happened yesterday, he has an impossible time concentrating and figuring out the simplest of tasks(like simple math calculations), and he is constantly misplacing things. Last week, he received a very important document in the mail and we tore the house apart for two hours until he finally found it put in a place where he would never usually put things. Anyhow, I do things like that all of the time, and if I were suddenly dealing with all of the worry and stress that I know he is dealing with, I think that I too would find it difficult to concentrate and remember things. But, he is totally convinced that it is PD that is now trying to rob him of his memory and mind. He is scared to death and knowing that he is a sensible man, I have to wonder if his memory really is becoming damaged due to PD. I have read that the mind is not affected though. And that if memory is impaired at all, it is the short term(versus the long term of knowing how to do basic math), and that it wouldn't happen for a long time if at all. He has only had it for a couple of years. The doctor tells me that his memory wouldn't be affected, but then why do they give him a series of memory tests everytime he goes to his appointments? Does anyone know what PD does, if anything, to the memory of a person? To their mind? Is there anything I can tell my father to ease his worry? Thank you, Kerry