Parkinson disease

Parkinson disease (or, simply, Parkinson) is the most common form of Parkinsonism, a group of motor system disorders. It is a slowly progressing, degenerative disease caused by the loss of dopamine-producing brain cells. Dopamine is a substance made in the body that helps with smooth and coordinated muscle movement. Parkinson is usually associated with these symptoms:
  • Tremor or trembling of the arms, jaw, legs, and face
  • Stiffness or rigidity of the limbs and trunk
  • Slowness of movement (bradykinesia)
  • Impaired balance and coordination

Causes of Parkinson disease:

The cause of Parkinson is unknown. Medical experts believe the symptoms are related to a chemical imbalance in the brain caused by brain-cell death.

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