Smoking is the main cause of lung cancer

The incidence and mortality of lung cancer are rising rapidly in countries around the world, especially in industrially developed countries and regions. Lung cancer ranks first among cancer deaths in both men and women. This is mainly due to the accelerated aging of the global population, the increase in the number of smokers and various environmental carcinogenic factors.

The cause of lung cancer is closely related to smoking. Studies have found that the probability of long-term heavy smokers developing lung cancer is 10 to 20 times that of non-smokers. The younger the age at which people start smoking, the higher the incidence of lung cancer. In addition, smoking not only directly affects one's own health, but also has adverse effects on the health of people around them, leading to an increase in the incidence of lung cancer in passive smokers.

Lung cancer is now the fastest growing malignant tumor in my country. Therefore, quitting smoking is beneficial to both yourself and your family members. After 1-2 years of quitting smoking, the atypical hyperplasia of respiratory epithelial cells tends to reverse to normal cells. After 5 years of quitting smoking, the incidence of lung cancer decreases significantly, and after 15 years, it will be similar to the incidence of lung cancer in people who have never smoked.