The number of lung cancer cases in China has increased dramatically in the past few years, and the causes of this phenomenon are not only smoking, but also industrial pollution, chemical pollution and automobile exhaust pollution. In addition, the incidence of lung cancer among women has been increasing very fast in recent years, and the carcinogenic effect of cooking fumes should not be underestimated as well. So what should we pay attention to in our daily life? 1. Quit smoking and reduce the chance of second-hand smoke The incidence of lung cancer among long-term smokers is 20-40 times higher than that of non-smokers. It is said that 1 out of every 3 smokers in the world is Chinese. This is the reason why the incidence of lung cancer in China has increased dramatically in the last 50 years. Medical reports also indicate that the risk of lung cancer in heavy smokers (15 cigarettes or more per day) decreases significantly when the amount of cigarettes smoked is reduced by half, and the mortality rate of lung cancer decreases when smoking is discontinued. Other harmful effects of smoking include causing or aggravating heart disease, tracheobronchitis, emphysema, etc. Therefore, there is no benefit to smoking, for the health of you and your family, please stay away from tobacco. 2, efforts to combat air pollution For air pollution, now more mentioned is PM2.5 (lung particles), refers to particles less than or equal to 2.5 microns in diameter, mainly from car exhaust and coal smoke, roughly equivalent to 1/20 of our hair diameter. PM2.5 small mass, rich in toxins, suspended in the air for a long time, because of the small diameter, so can be inhaled into the more distal lung tissue The more toxic it is to the human body, the more toxic it is. In the case of severe pollution, the amount of carcinogens inhaled by residents every day is equivalent to smoking 20 paper cigarettes. Therefore, the state mandates that by 2015, North China, the Pearl River Delta and other regions to publicly monitor PM2.5 value, and there are even rumors to be linked to the performance of officials career, enough to illustrate its importance. Therefore, we advocate walking more and driving less to reduce tailpipe air pollution. When encountering hazy weather, try to reduce outdoor activities, must go out if you should wear a mask. 3, home protection The main protection point of home protection is in the fumes. A study shows that cooking on cookware with poor ventilation system and very low combustion efficiency causes damage to health equivalent to smoking two packs of cigarettes per day, which leads to 1.6 million deaths worldwide every year. The main carcinogenic effect of grease smoke is the carcinogenic benzo(a)pyrene contained in it. It can cause damage to human cell chromosomes and long-term inhalation can induce cancerous changes in lung tissue. Therefore, in daily life, we should try to reduce the production of cooking fumes, reduce frying, frying and other methods of cooking food, and use the way of steaming, which can better retain the nutrients in the ingredients, which is beneficial to health. 4.Occupational protection Effective protective measures should be taken in mines where radioactive ores are mined. Workers in coal mines should wear protective masks, and workers in chemical plants exposed to environments containing carcinogenic compounds should also have the necessary protective measures.