1. Smoking cessation Smoking is a major risk factor for COPD, and without removing the cause, it is difficult to achieve good results with medication alone. Therefore, the key measure to prevent the occurrence and progression of COPD is to quit smoking. Reduce the inhalation of occupational dust and chemical substances. For people who are exposed to occupational dust, such as those working in coal mines, metal mines, cotton textile industry, chemical industry and certain mechanical processing, they should be well protected. 2. Reduce indoor air pollution. Avoid burning biofuel in poorly ventilated spaces, such as burning wood for cooking, making stoves indoors for heating, and passive smoking. 3. Preventing and treating respiratory tract infections Actively prevent and treat upper respiratory tract infections. Get vaccinated against influenza in the fall and winter; avoid crowded places; keep the air in your room fresh; and actively treat upper respiratory tract infections. 4. Strengthening exercise: Choose suitable exercise according to your own situation, such as walking, jogging, swimming, climbing stairs, hiking, playing tai chi, dancing, lifting a few pounds with both hands, and whistling when lifting up. 5. Whistling exercise: An important goal in the treatment of COPD patients is to maintain good lung function. Only by maintaining good lung function can patients have better activity ability and good quality of life. Therefore, exercise is very important. Patients can do whoop yoga, whoop exercises, deep and slow abdominal resistance whoop exercises (with the help of LungTec), singing, whistling, playing flute and so on to carry on the lung function exercise. 6. Cold tolerance exercise: Reduced cold tolerance can lead to recurrent upper respiratory tract infections in COPD patients, so cold tolerance is equally important for COPD patients. Patients can start washing their faces with cold water in summer and keep outdoor activities every day to exercise their cold tolerance.