Overview
Parkinson's disease is a progressive disorder of the nervous system that affects movement. Nerve cell damage in the brain causes dopamine levels to drop, leading to the signs of Parkinson's.
Symptoms
It often starts with a tremor in 1 hand. Other symptoms are slow movement, stiffness, and loss of balance.
Treatments
Medications can help control symptoms.
Last Updated: June 13th, 2017
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