Parkinson's disease

Parkinson’s disease (PD) is an idiopathic, slowly progressive, degenerative CNS disorder characterized by slow and decreased movement, muscular rigidity, resting tremor, and postural instability.11. About Parkinson’s diseaseParkinson's disease is the fourth most common neurodegenerative disease of the elderly. It affects about 1% of those >= 65 yr old and 0.4% of those > 40 yr old. The mean age of onset is about 57 yr. It may begin in childhood or adolescence (juvenile parkinsonism).