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Symptoms include uncontrolled shaking of hands, arms, jaw, and face, stiffness of limbs and back, late symptoms are difficulty sleeping, trouble chewing food, trouble talking, depression This happens because neurons (brain cells) in your brain responsible for making dopamine are destroyed. Dopamine is a chemical that sends messages to muscles and controls muscle movement. When 50 to 80% of dopamine making neurons are impaired or destroyed, the effects of Parkinson's take place. Reasons for destruction of neurins are unknown.

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16y ago

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