What Is Parkinson's Disease - Symptoms & Treatment - Nervous System Disorder - Tremors & Shaking Parkinson's disease is a nervous system disorder that leads to tremors, shaking, and stiffness. Parkinson’s disease is a movement disorder that affects the nervous system. Its symptoms occur because of low dopamine levels in the brain. Dr. Ehsan Ur Rehman is one of the top Neurologists practicing at Smart Medical and Diagnostics Center in Islamabad. To book an appointment with Dr. Ehsan, please visit the following link or call 042-3890-0939. https://oladoc.com/ehsan-ur-rehman-ne... Parkinson's disease has four main symptoms i.e tremor, stiffness of the limbs and trunk, slowness of movement, and impaired balance and coordination. It is not possible to prevent Parkinson’s disease, but some lifelong habits may help reduce the risk. Although there is no cure for Parkinson's disease, medicines, surgical treatment, and other therapies can often relieve some symptoms. A patient should consult a neurologist for proper treatment of Parkinson's disease.