Parkinson's Disease Dementia
Parkinson's Disease Dementia Overview
Parkinson's disease (PD) is an age-related degenerative disorder of certain brain cells. It mainly affects movements of the body, but other problems, including dementia, may occur. It is not considered a hereditary disease, although a genetic link has been identified in a small number of families.
Depression, anxiety, personality and behavior changes, sleep disturbances, and sexual problems are commonly associated with Parkinson's disease. In many cases, Parkinson's disease does not affect a person's ability to think, reason, learn, or remember (cognitive processes).
About 500,000 people in the United States have Parkinson's disease, and about 50,000 new cases are diagnosed each year. The number of those who have some cognitive symptoms is difficult to pinpoint because accurate data are lacking for the following reasons:
Most people have the first symptoms of Parkinson's disease after the age of 60 years, but Parkinson's disease also affects younger people. Early-onset Parkinson's disease strikes people around the age of 40 years, or even earlier.
Medically Reviewed by a Doctor on 4/30/2014
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