Brain & nervous system

Parkinson's disease, explained

Know the causes, symptoms and treatment of this nerve disorder.


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Parkinson's disease, a chronic and progressive nerve disorder, affects as many as one million Americans, with 60,000 people diagnosed each year. You might have questions like: What is Parkinson’s disease? Who gets it, what are the symptoms, and is there a cure? Here’s what you need to know.

Written by Patrick Sullivan.
Medically reviewed by Mark Arredondo, MD.December, 2023
Updated onAugust, 2026
Written by Patrick Sullivan.
Medically reviewed by Mark Arredondo, MD.December, 2023
Updated onAugust, 2026
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