Parkinson’s Disease

A disease in which neurons in the areas of the brain that control motor function die or work improperly, causing trembling, loss of balance, and slow movement.

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Parkinson’s Disease: An Overview

Last Modified: July 21, 2010

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Parkinson's disease is a progressive and chronic disorder of the nervous system. Parkinson's (PD) results from the degeneration of dopamine-producing neurons in the substantia nigra — the "movement… View Full Article

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