Parkinsonís Disease: Overview

Parkinsonís Disease is a well-known and much-fear disorder characterized by tremor (shaking) symptoms. However, it is not actually that common, and many younger people with mild tremor symptoms have simpler age-related conditions such as Essential Tremor or other causes of tremor such as Multiple System Atrophy (MSA). Parkinsonís disease is rare before age 50 but affects about 1% of people over 65. Parkinsonís Disease most commonly has no obvious cause, but it is important to check for Secondary Parkinsonism, which can be caused by brain injury, brain infections, poisons, drug side-effects or drug interactions, nerve disorders, and other causes. The early symptoms of Parkinsonís disease are usually a small tremor (shaking, trembling) in one part of the body, such as the hand, arm or leg. As the disease progresses, more muscles and areas become affected, tremor becomes more severe, and the diagnosis becomes more obvious. Over time, more severe movement disorders occur such as difficulty with walking, speech problems, facial expression changes, and nodding of the head. However, mental function is not normally affected until late in the disease.

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