Parkinson's disease is a brain disorder that effects movement. While everyone with Parkinson's experiences the disease differently, there are common patterns of progression in the disease that are defined in stages. Identifying an individual’s stage can help doctors and caretakers control and improve symptoms:
In the earliest stage of Parkinson’s, the person may experience mild symptoms that usually affect one side of the body. This includes tremor and changes in posture, movement (walking) and facial expressions.