Hand trembling is not the only symptom of Parkinson’s disease, slow movement of the hands and feet is the “common disease” of Parkinson’s patients. Director Zhu Kaiyun introduced Parkinson’s disease is a degenerative disease of the nervous system, lesions in the midbrain of the human brain. There is a group of nerve cells, called nigrostriatal neurons, when these nigrostriatal neurons degenerate and die to more than 80%, the neurotransmitter dopamine in the brain will be reduced to maintain the normal function of the regulatory nervous system, there will be symptoms of Parkinson’s disease. If the following symptoms appear, you should be alert to Parkinson’s disease: 1. Motor retardation, almost every patient has this symptom. The symptoms include dull expression, inflexible or slow movements, and a feeling that the feet cannot be lifted and the arms do not swing when walking. 2. Resting tremor. This is also the first symptom of Parkinson’s disease and is one of the most common symptoms. It starts in one of the upper limbs, appears or is obvious when it is quiet, decreases or disappears when it is exercised, and will disappear after sleeping. 3. Muscle stiffness or muscle spasm in the limbs. Patients often present with special postures as a result, such as head tilting forward, and balance disorders will appear in the middle and late stages. In the last 5 years, neurologists have also gradually observed some non-motor symptoms that patients with Parkinson’s disease have at the same time, some of which also appear early in the disease and are easily misdiagnosed or make patients take a wrong turn. The four main areas are sensory disorders (pain), mental disorders (depression), autonomic disorders (constipation, urinary problems), and sleep disorders. Most of the sensory abnormalities occur in the middle and late stages, mainly manifested as numbness and discomfort, dull pain, etc. Some patients also have a feeling of abdominal muscle cramps, which may be related to high muscle tone. Leg muscle spasms especially at night are more common. The non-motor symptoms in terms of neuropsychiatric symptoms include anxiety states, emotional apathy, depression, and dementia. Depression is present in about half of patients with Parkinson’s disease. Constipation is the most common autonomic symptom in Parkinson’s disease patients and can precede the onset of Parkinson’s disease symptoms, severely affecting the patient’s life. Olfactory disturbances occur in up to 90% of patients with Parkinson’s disease and are a potential preclinical indicator of the onset of motor symptoms in Parkinson’s disease patients. Sleep disturbances often appear early in the disease, and about 1/3 of people with Parkinson’s disease will develop fast-acting eye sleep behavior disorders, which can precede motor symptoms in some people with Parkinson’s disease. Excessive daytime sleepiness and involuntary dozing are present in more than 50% of patients with Parkinson’s disease, which can also serve as a diagnostic indicator of preclinical Parkinson’s disease.