Parkinson's Disease is a degenerative brain disorder initially characterized by trembling lips and muscles. Emotions may be affected and this disease can also cause much depression. In cases where there is no known cause, it usually appears after age 40. Parkinson's disease is also a progressive disorder characterized primarily by uncontrollable tremors in the limbs, a shuffling gait, and generalized muscular rigidity. It most often strikes people over the age of 60. Seventy-four to 98% of patients who …showed first 75 words of 430 total…

…showed last 75 words of 430 total…the thyroid gland. Treatment of Parkinson's disease consists of correcting the dopamine deficiency. Levodopa has several undesirable side affects among them nausea is the main side effect. Parkinson's disease is usually not fatal, but it leads to changes in the entire body, making the patient more prone to other diseases. It can be present in a mild form for 20 or 30 years, but a severe form can lead to serious disability within five to ten years.