Parkinson's Disease - Symptoms, Causes, and Doctors

About- Parkinson's disease is a progressive nervous system disorder that affects movement.
Symptoms-

Arms, legs, and trunk stiffness

Balance disorder

Blank facial expression

Decreased blinking

Difficulty swallowing

Essential tremor

Impaired posture and balance

Loss of automatic movements

Muffled, low-volume speech

Rigid muscles

Slow movements

Speech changes

Tendency to fall

Writing changes

Causes-
The cause of Parkinson's disease is unknown, but several factors may play a role, including genes, environmental triggers.

Specialists to visit
Neurologist
Speech therapist

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References
https://www.healthline.com
https://www.mayoclinic.org
https://en.wikipedia.org
https://www.medicinenet.com
http://parkinson.org
https://www.webmd.com