Parkinson's disease is a relatively common neurological disorder and a degenerative disease of the nervous system, as well as an extrapyramidal disorder. The symptoms of Parkinson's disease primarily include the following: The first major category is motor symptoms. The motor symptoms of Parkinson's disease mainly include bradykinesia, where the patient is generally slow in all actions, such as slow walking, slow dressing, slow turning, etc. There are also symptoms of increased muscle tone and stiffness in the muscles, along with resting tremor of the limbs, unstable posture, and a tendency to fall. The second major category of symptoms is non-motor symptoms, which are also very important in Parkinson's disease. For instance, patients may experience significant sleep disturbances, a reduction in the sense of smell, dizziness, constipation, frequent urination, and other clinical manifestations.