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Parkinson's disease is a disorder of the central nervous system that affects movement. Symptoms develop slowly over time and vary from person to person. In the early stages of the disease, patients may experience the loss of facial expression, as well as changes in handwriting and speech. Later symptoms frequently include tremors, slowness of movement, limb stiffness, and balance problems.
The symptoms of Parkinson's disease intensify as the disease develops. Although there is no cure for Parkinson's disease, medications can help you manage symptoms. Occasionally, your doctor may recommend surgery to improve your symptoms by regulating particular areas of your brain.