With the continuous improvement of living standards, modern people's diseases are also frequently at risk. The number of people suffering from cancer is increasing. It's appalling, it's frightening. Modern common cancers include stomach cancer, lung cancer, and liver cancer. Among them, lung cancer is among the best.So why do so many people get lung cancer, a disease known as the devil?
According to reports, the main cause of cancer is smoking. Because cigarettes contain a lot of carcinogens, long-term use can increase the risk of lung cancer. Also, smokers are more likely to get lung cancer than nonsmokers. But don't think that if you don't smoke, you won't be at risk for lung cancer. Burning
smoke can also cause harm to the human body. Smoke also contains many carcinogens, and smoking more can cause lung cancer and sinus cancer.
Therefore, secondhand smoke can also be harmful or even more serious than smoking. Moreover, the lungs of people who smoke for a long time are black, and the teeth of people who smoke for a long time are yellow.
Smoking is also bad for the brain's thinking, affects memory, causes memory loss, and damages the brain's nerve center. To sum up, smoking is harmful, not only to oneself but also to harm.
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