Parkinson's Disease »
What is Parkinson's disease?
Parkinson's disease is the second most common neurodegenerative disorder and
the most common movement disorder. It is characterized by progressive loss of
muscle control, which leads to trembling of the limbs and head while at rest,
stiffness, slowness, and impaired balance. As symptoms worsen, it may become
difficult to walk, talk, and complete simple tasks.
The progression of Parkinson's disease and the degree of impairment vary from
individual to individual. Many people with Parkinson's disease live long
productive lives, whereas others become disabled much more quickly. Premature
death is usually due to complications such as falling-related injuries or
pneumonia.
In the United States, about 1 million people are affected by Parkinson's
disease and worldwide about 5 million. Most individuals who develop Parkinson's
disease are 60 years of age or older. Parkinson's disease occurs in
approximately 1% of i...
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