April 11th is World Parkinson's Day, and this year's theme is "Pay attention to mental health and comprehensively manage the entire process". Parkinson's disease can be seen in all age groups, from teenagers to the elderly, and its harm to health cannot be underestimated. What are the symptoms of Parkinson's disease? How to prevent and treat? Do we have any misunderstandings about Parkinson's disease? Let's get to know together. What is Parkinson's disease? Parkinson's disease is a chronic degenerative disease of the central nervous system, caused by lesions in the substantia nigra (a nucleus rich in melanocytes located in the brainstem) that prevent the normal secretion of dopamine. It was first discovered by British doctor James Parkinson. The prevalence rate of the whole population is about 0.3%, which has doubled in the elderly population. The incidence rate of men is slightly higher than that of women. The high incidence population of Parkinson's disease has these characteristics: the average age of onset is about 60 years old, and the incidence rate increases with age. People with heavy mental workload are at high risk. Among young patients under the age of 40, impatience and high stress are common traits among many people. People who frequently use or come into contact with chemicals such as insecticides and herbicides. Inheritance refers to genetic factors, with direct relatives suffering from Parkinson's disease, the risk of disease increases by 4% to 9%. What are the possible symptoms of Parkinson's disease after illness? Parkinson's disease has both motor and non motor symptoms, among which motor symptoms are the threshold for diagnosing Parkinson's disease. Many patients with static tremor experience tremors in their hands, commonly referred to as tremors. Fingers are like counting money and rubbing pills, with varying amplitude and a frequency of approximately 4-6 times per second. They are mainly characterized by coarse tremors that gradually spread to the limbs, causing muscle stiffness. It can also be seen in the lower jaw, lips, and other parts. Tremor is not an essential characteristic of all Parkinson's disease patients. Some patients only experience stiffness in their limbs without tremors, and are referred to as non tremor Parkinson's disease. Among the many symptoms of Parkinson's disease, delayed movement and reduction are the core symptoms. For example, autonomous movements such as swinging the upper limbs, waking up, rolling over, and other daily activities slow down during walking; Fine movements such as brushing teeth are not flexible; Lack of facial expression, appearance of 'masked face', possibly accompanied by non blinking, binocular gaze, etc; The characters written are small and curved, making them difficult to distinguish; Abnormal gait, swaying small steps when walking, lacking the arm swing that accompanies normal walking, often causing instability when turning, and difficulties when stopping walking. The non motor symptoms of Parkinson's disease include olfactory dysfunction, low mood, sleep problems, etc. The most common of which are anxiety and depression. About 70% of Parkinson's patients are accompanied by anxiety symptoms, often feeling nervous, restless, and restless; About 50% of patients have symptoms of depression, often manifested as decreased interest, decreased appetite, fatigue, crying, anxiety, insomnia, perceived helplessness, decreased self-evaluation, etc. In severe cases, suicidal tendencies may occur. There is also a type of sleep disorder characterized by shouting, punching, and kicking during sleep, as if having a nightmare, and even falling out of bed, known as REM sleep behavior disorder. This manifestation often occurs several years before Parkinson's disease and is currently a highly valued early clinical phenomenon, considered as a warning sign of Parkinson's disease. Parkinson's disease, such as