Others will suffer with progressive dementia. Parkinson's will show no favorites, it will affect men and woman equally. Most generally it will develop after the age of fifty. The symptoms of Parkinson's disease comes from progressive destruction of a part of the brain, the substania niagra. This is the part of the brain where the cells make dopamine.
Dopamine is a chemical that is necessary for neuromuscular function.
What actually causes this horrible disease is often unknown. It is, however, known that some head injuries and the use of cocaine have been contributing factors in a certain type of parkinsonism. There is no know cure for Parkinson's decease, but several medications, especially Levodopa, can reduce symptoms and slow down its progress. Levodopa was introduced thirty years ago and is the main treatment for Parkinson's. It is a naturally occurring neutral aminoacid that is converted to dopamine in the brain.