Reason 1: Age Lung cancer is rare in people under the age of 40, but mostly develops in people over the age of 50. It must be admitted that as we age, the cells in our body will inevitably be damaged and the body’s immunity will be reduced, so the probability of developing the disease will naturally increase. What to do? It is difficult to do this, after all, we do not have a time machine to go back in time. However, age is only one of the influencing factors, it is never a certainty that you will get cancer when you are older. Lung cancer is also closely related to many bad habits, and being able to change these habits can also help us stay away from lung cancer. Reason 2: Second-hand smoke, whether at home or at work, passive inhalation of second-hand smoke will increase the probability of cancer. The 2012 Ministry of Health report on the health risks of smoking in China also clearly tells us that there is no “safe level” of exposure to secondhand smoke, and that any dose of secondhand smoke can have an impact, and the more you inhale, the greater the risk. When someone is smoking indoors, no amount of exhaust fans, air conditioning or other ventilation or air filtration devices can prevent non-smokers from inhaling secondhand smoke. What to do? For passive smokers, the most direct way is to stay away from secondhand smoke, as the saying goes, “If you can’t afford it, you can avoid it. For people who smoke, no matter what your reasons for smoking, is it possible to make an effort not to smoke indoors? Reason 3: Are you sure you’re not kidding about the cooking fumes? Not really. Chinese cooking is all about color and flavor, and frying, stir-frying, and dry-frying are often essential processes. Some studies show that women who cook every day have a twofold increase in lung cancer incidence; cooking methods also have an impact. For women who are keen on frying and stir-frying, their risk of lung cancer is higher than those who cook. Seeing this, maybe everyone’s mood is complicated …… What to do? What to do? Buy a hood, it will take away those carcinogenic substances that are eyeing on the body; improve the cooking method, reduce high temperature frying and stir-frying. The method is not difficult, and it works. Reason 4: Air pollution First of all, it should be clear that it is still very difficult to clarify the relationship between lung cancer and haze. Various studies only tell us that the incidence of lung cancer is related to haze, but no authoritative study has ever given a clear conclusion on how big this correlation is. In fact, compared with smoking or even cooking, haze is not the main cause of lung cancer. What to do? Of course, haze must be prevented. If you stay indoors, you can buy an air purifier; when you go out, you can wear an anti-haze mask. But …… if the mask is not chosen well, it is equivalent to just a different way to suck the haze! Reason 5: Radon gas Most people may not have heard of radon gas. The radon gas we usually come into contact with mainly comes from soil, rocks and some decoration materials. If it is outdoors, the concentration of radon gas will be very low and will have no effect on the body. In special indoor areas, such as basements or rooms installed with decorative materials like granite, there is a possibility that the radon gas concentration will exceed the standard and attention needs to be paid to reduce indoor radon gas. What to do? When choosing interior decoration materials, try to choose qualified products; ventilate the room more; try not to stay in the basement and unventilated rooms for a long time.