As the pressure of modern life increases, the pace of life accelerates, coupled with China’s “smoking culture” and “wine culture” is deep-rooted, more and more people smoke and drink. Looking back ten years ago, we often saw some men smoking on the street but rarely saw women smoking, but now we often see some young men and women smoking on the road; wine has become the main character in many occasions, etc.. These seen in life is no longer surprising, the probability of appearing higher and higher. It is undeniable that moderate smoking and drinking can make people relax, avoid stress and improve their thinking ability. But we also know that excessive smoking and drinking are harmful to health, so what exactly does it do to the body? In the clinic, we often encounter patients who ask whether they can smoke or drink. Is it okay to drink alcohol? What is the harm of smoking and drinking alcohol to the body? Strictly speaking, he said that smoking and drinking are not the direct causes of cancer. The results of experimental studies with animals in the laboratory show that smoking and alcohol itself do not cause malignant tumor growth. Scientists believe that smoking and drinking alcohol are only assistants or salesmen of carcinogens, which not only have the effect of promoting carcinogens, but also suppress the function of the immune system. Drinking alcohol coupled with smoking dramatically increases the risk of several types of cancer. The woman in the picture is not smoking directly, but the dangers of secondhand smoke should not be underestimated. Secondhand smoke combined with alcohol consumption also creates a simultaneous environment, which also increases the risk of cancer. So can we smoke and drink alcohol or not? My answer is to try not to use them, and if you are addicted to alcohol and tobacco, you should slowly reduce the amount of use. Because these bad habits can lower our immune function and thus increase the risk of cancer. For decades, more and more evidence has proven the simple fact that the incidence of cancer can only be reduced by adhering to a healthy lifestyle over time. The ban on smoking in many public places now also stops second-hand smoke from harming others. We should try to improve our body resistance by not smoking, not drinking alcohol, eating more fruits and vegetables, and exercising more.