Thirty years of smoking can easily cause irreversible damage to the lungs and increase the risk of various respiratory diseases, such as chronic bronchitis, chronic obstructive pulmonary disease and lung cancer.
Tar and nicotine can cause a variety of damage to the respiratory system, not only can damage the airway epithelium and cilia movement, so that the respiratory tract purification ability to decline, but also can make the bronchial mucus pathological changes, resulting in an increase in mucus secretion, but also can make the airway resistance increase, damage to the elastic fibers of the lungs, increase the risk of suffering from the following lung diseases.
1. Chronic bronchitis: According to the relevant research, the prevalence of chronic bronchitis in smokers is 2-8 times higher than that in non-smokers. Typical clinical symptoms include coughing, phlegm and shortness of breath.
2. Chronic Obstructive Pulmonary Disease (COPD): Smoking is also a cause of COPD. Smoking for a long time can damage the lungs and cause persistent airflow limitation, which in turn can cause various clinical symptoms, such as coughing, sputum coughing, dyspnea, chest tightness and so on.
3. Lung cancer: long time smoking is also one of the risk factors of lung cancer. The risk of lung cancer in smokers is about 10~25 times, which is affected by the age, duration and amount of smoking. Clinical symptoms may include cough, blood in sputum, hemoptysis, chest pain and so on.
Smoking is very damaging to the lungs, so it is recommended to quit smoking in time and maintain a healthy lifestyle. If you feel unwell, you should consult a doctor promptly.