Smoking can cause many diseases, and the occurrence of lung cancer is inextricably linked to smoking. According to the data, the mortality rate of lung cancer is positively correlated with the consumption of tobacco. In China, the world’s number one consumer of tobacco, the mortality rate of lung cancer among men has increased by 465% over the past 30 years; in Beijing, the capital city, the mortality rate of lung cancer accounts for 1/4 of all cancer deaths! More than 85% of lung cancers are caused by smoking; women are particularly sensitive to tobacco. According to a study by the International Early Lung Cancer Action Plan, the incidence of lung cancer in women is nearly twice as high as in men for the same dose of tobacco exposure! In a Japanese study, even though the wife did not smoke, if the husband smoked more than 20 cigarettes a day, the wife was more than twice as likely to die of lung cancer compared to a non-smoking household! Thus, women are more likely to be victims of tobacco, and the good news is that women have better survival rates than men after treatment for lung cancer. Lung cancer caused by smoking mainly consists of squamous lung cancer and small cell lung cancer, of which small cell lung cancer is the most malignant type of lung cancer among all types of lung cancer, and soon after its occurrence, distant metastases, especially brain metastases, appear, and although it is sensitive to radiotherapy, its long-term survival rate is still low. However, because most squamous cancers occur close to the hilum, they are not easily detected at early stages and are mostly in the middle and late stages after detection, and the low resection rate seriously affects the treatment effect. In addition to lung cancer, smoking (including secondhand smoke) can cause up to 24 other fatal diseases, including a variety of tumors. Therefore, for the sake of your health and the health of others, please stay away from tobacco and cherish life!