> > In her Personal Health column in today's New York Times, Jane > Brody states that "one in three of Parkinson's patients will > eventually develop Alzheimer's disease, a rate three times that found > in the general population of elderly people." > Is she correct? What is the research upon which she generalizes? > My impression (based entirely upon hearsay, including at least one > remark by a contributor to this list) was precisely the opposite -- > that the incidence of Alzheimers among Parkinson patients was less > than the incidence among similarly aged members of society at large. > Richard H. Ullman > Parkinsons Disease encompasses several different types. We have all become very familiar with young onset PD. There is also a Parkinsons + syndrome which, in addition to stiffness, has dementia as a component. I believe that we are just beginning to understand that PD can mean different symptoms for different people. No one can determine what symptoms every person will experience. ------ Peace Mary Ann Zippo's mom