Neurons in the substantial nigra produce a specific type of neurotransmitter – dopamine – responsible for regulating movement. Without it, symptoms of Parkinson’s develop. The American Parkinson Disease Association (APDA) grouped four primary motor symptoms of the condition. These are: tremor, rigidity, bradykinesia (slow movement) and postural instability (balance issues). Delving into bradykinesia, this common […]
Parkinson's disease symptoms: The way you speak could signal the brain disease
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