Parkinson’s disease affects an estimated 10 million people worldwide, with men 1.5 times more likely to have the illness than women. Parkinson’s disease is a progressive nervous system disease caused by degeneration of the brain’s basal ganglia and the brain’s dopamine transmitter. Parkinson’s disease most commonly affects persons over the age of 50, but approximately 4 percent are diagnosed with the illness prior to age 50.
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