Parkinson’s Disease (PD) is a chronic and gradually progressive condition that affects the neurologic system. PD is more common after age 50. Typical features are tremor of the limbs (especially at rest), stiffness of the muscles, slowness of movement and difficulty maintaining balance. Other symptoms that people with PD can experience include difficulty swallowing, poor sleep, depression and constipation. The symptoms can usually be helped by medications and other therapies. A cure has not yet been found. There is much active research into the possible causes of PD, and it is now thought that the combination of an individual’s genetic make-up along with certain environmental factors may be important. A newly developing California Parkinson’s Disease Registry will contribute much toward our understanding of this disease.
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