Parkinson’s Disease and Movement Disorders
Causes, incidence, and risk factors
Parkinson’s disease most often develops after age 50. It is one of the most common nervous system disorders of the elderly. Sometimes Parkinson’s disease occurs in younger adults. It affects both men and women.
In some cases, Parkinson’s disease runs in families. When a young person is affected, it is usually because of a form of the disease that runs in families.
Nerve cells use a brain chemical called dopamine to help control muscle movement. Parkinson’s disease occurs when the nerve cells in the brain that make dopamine are slowly destroyed. Without dopamine, the nerve cells in that part of the brain cannot properly send messages. This leads to the loss of muscle function. The damage gets worse with time. Exactly why these brain cells waste away is unknown.
Additional Information on Parkinson’s Disease (cited from MayoClinic.com)
Parkinson’s disease is a progressive disorder of the nervous system that affects your movement. It develops gradually, sometimes starting with a barely noticeable tremor in just one hand. But while tremor may be the most well-known sign of Parkinson’s disease, the disorder also commonly causes stiffness or slowing of movement.
In early stages of Parkinson’s disease, your face may show little or no expression, or your arms may not swing when you walk. Your speech may become soft or slurred. Parkinson’s disease symptoms worsen as your condition progresses over time.
Although Parkinson’s disease can’t be cured, medications may markedly improve your symptoms. In occasional cases, your doctor may suggest surgery to regulate certain regions of your brain and improve your symptoms