November 15, 2021, is the 20th World Chronic Obstructive Pulmonary Disease (COPD) Day, chronic obstructive pulmonary disease (COPD), or “chronic obstructive pulmonary disease” for short, is often referred to as chronic bronchitis and emphysema, which is commonly referred to as “old slow air”, and the winter season is the high incidence of the disease. Smoking is the main cause of chronic obstructive pulmonary disease (COPD), and more than 90% of COPD patients have a history of smoking or passive smoking. And the longer you smoke and the more you smoke, the higher the incidence of COPD. This is also the reason why there are more men with COPD. If you have been smoking or inhaling second-hand smoke for many years, or if you experience chronic coughing, coughing up white sputum, and chest tightness and shortness of breath in the winter months when the air quality is poor, you should be on your guard. In addition, the onset of the disease is associated with recurrent respiratory infections, a history of asthma, heredity, and age. Among all lung diseases, chronic obstructive pulmonary disease is the most immobile killer. Early symptoms are not obvious, and when patients come to the clinic, most of them are already in serious condition and it is too late. Therefore, it is recommended that old smokers over 40 years of age, meet the activity of shortness of breath, or cough, sputum for more than three months of any one, should go to the hospital to check a lung function, in order to rule out or find out whether they are suffering from chronic obstructive pulmonary disease as early as possible. Once it is clear that it is chronic obstructive pulmonary disease, you should quit smoking immediately to prevent the condition from worsening. In addition, if there is a history of chronic bronchitis patients, coughing for more than two years, coughing for more than three months each year, to rule out other diseases that cause coughing, you should also consider whether to suffer from chronic obstructive pulmonary disease. “Cardiovascular and cerebrovascular diseases, malignant tumors, chronic respiratory diseases and diabetes are known as the ‘four major chronic diseases’ by the World Health Organization, and in China, chronic obstructive pulmonary disease has become a shortcoming in the prevention and control of chronic diseases.” Wang Chen, academician of Chinese Academy of Engineering and president of China-Japan Hospital, said at the inaugural meeting of the “Respiratory Specialty Medical Association Chronic Obstructive Lung Collaborative Group” that chronic obstructive pulmonary disease in China has the characteristics of high prevalence, high disability rate, high morbidity and mortality, and high disease burden of the “four highs”, and has become a very serious public health problem. It has become a very serious public health problem. The effect of the drug is to inhibit bacteria, but not to relieve the bronchial spasm. Moreover, bronchial asthma is different from chronic bronchitis, in which the size of the airway lumen can be restored to normal after the irritating factors subside, whereas prolonged bronchial asthma causes irreversible narrowing of the airway lumen, and thus the condition becomes more and more serious. Finally, patient compliance is a key factor in determining the outcome of asthma. Improving adherence has a much greater impact on asthma prognosis than changing a specific treatment. Smoking cessation: Smoking is a major cause of disease and exacerbation, so it is important to stop smoking. Keep the air clean: Ensure that the patient lives in an environment with clean air and avoids exposure to kitchen fumes. Prevent colds: Most of the patients with chronic obstructive pulmonary disease (COPD) are middle-aged and old people with low resistance, so when the ambient temperature drops, they should pay attention to keep warm and add more clothes in time, and the indoor temperature should be kept relatively stable, as too cold and too hot are not good for patients. Avoid getting cold, do not get cold and cause cold. Regular exercise: Regular physical exercise has a very good effect on the prevention of chronic obstructive pulmonary disease (COPD), which can improve the immunity of patients and improve respiratory function. Appropriate walking and playing tai chi are good for the body, and rest should be taken when you have difficulty in breathing and fatigue. Acute exacerbation patients should not do physical exercise for the time being; in addition, exercise should be gradual and gradually increase the amount of activity; outdoor activities should be avoided when the climate is cold.