Parkinson's Disease or PD is a degenerative disorder of the central nervous system that impairs the patient's motor skills, speech and other daily life function.
This medical condition belongs to a group known as movement disorders that is distinguished by muscle rigidity, tremor, a slow physical movement and a complete loss of physical movement in severe cases.
The causes of this disorder have no specific known reason. There are less common causes of Parkinson's like: genetic inheritance, head trauma, toxins, cerebral anoxia and drug-induced Parkinson's.
The common and popular known treatment for this is Levodopa or L-dopa in different forms. This is transformed into dopamine in the dopaminergic neurons by L-aromatic amino acids decarboxylase.
Another form of treatment is through Brain surgery and stimulation. This was the first and the most common procedure or method used to treat PD but when Levadopa was discovered, this was prohibited in some cases.