Prevention of lung cancer

Cancer does not occur suddenly. Animal experiments and clinical observations have shown that the occurrence and development of malignant tumors follow certain rules and processes. Today, let's learn more about this.

Generally, there is a long period of time from exposure to carcinogenic factors to death, which may even be more than 10-20 years. As for the length of this process, and whether it will eventually enter the precancerous stage, cancer, or regress after cancer, it still requires factors such as the biological behavior and dynamic changes of the cancer cell population itself. Therefore, in this process, as long as any one or two links are interrupted, the occurrence and development of cancer may be stopped, thereby achieving the role and purpose of preventing cancer. Lung cancer also has this occurrence and development law. Therefore, it is entirely possible for people to take corresponding measures to stop or reduce the occurrence and development of lung cancer. In the prevention of lung cancer, the first thing is to control the known carcinogenic factors, and at the same time, to study and discover other causes and their preventive measures. The following is an introduction to the prevention of known carcinogenic factors.

1. Prohibition and control of smoking:

The mechanism of smoking causing lung cancer has now been studied more clearly, and epidemiological data and a large number of animal experiments have fully proved that smoking is the main factor causing lung cancer. The following is a discussion on the issue of smoking ban.

1. Smokers, especially those who smoke heavily for a long time, should quit smoking immediately.

2. The state should enact strong laws to prevent the production and sale of cigarettes, and put eye-catching, warning texts on cigarette packaging to publicize that tobacco contains carcinogens that cause lung cancer.

3. The state should prohibit smoking in public places through laws to reduce the harm of passive smoking.

4. Smoking bans should start among teenagers, and non-smoking should be legislated as a code of conduct for primary and secondary school students.

5. Vigorously promote that quitting smoking can reduce the incidence of lung cancer. British doctor Doll once reported that the lung cancer mortality rate of British doctors who quit smoking for several years was significantly lower than that of continuous smokers. After 20 years of stopping smoking, the lung cancer mortality rate was only 1/7 of that of continuous smokers.

6. Regular physical examinations should be conducted for those aged 45 and above who smoke more than 20 cigarettes a day.

2. Reduce the harm of industrial pollution:

At present, inorganic arsenic, asbestos, chromium, nickel, coal tar, soot and coal combustion products such as 3,4-benzopyrene in the mining industry are known to be factors that cause lung cancer. Long-term and large-scale exposure to the above substances may cause lung cancer. In order to reduce the inhalation of these substances, we should start from the following aspects.

1. Workers in a dusty environment should wear masks or other protective masks to reduce the inhalation of harmful substances.

2. Improve the ventilation environment in the workplace and reduce the concentration of harmful substances in the air.

3. Transform the production process to reduce the generation of harmful substances.

4. Strengthen the sanitary supervision and management of the production environment and the treatment of industrial waste.

(III) Reducing environmental pollution:

Air pollution is an important factor causing lung cancer. The main factors include 3,4-benzopyrene, sulfur dioxide, nitrogen oxides and carbon monoxide. There are several ways to reduce environmental pollution:

1. Restrict the development of urban motor vehicles, improve the combustion equipment of motor vehicles, and reduce the emission of toxic gases.

2. Research harmless energy and gradually replace or eliminate harmful energy.

3. Improve indoor ventilation equipment to reduce harmful substances in the micro-environment.

4. If you work in the kitchen for a long time, you must have good ventilation and exhaust preparation.

4. Spiritually:

In terms of spirit, we should keep a cheerful and positive spirit and not be depressed by trivial matters, because mental unhappiness will cause the dysfunction of the human body's neuro-endocrine-immune network system, which will further cause the body's anti-tumor immune monitoring system to work abnormally.

(V) Diet:

The diet should be rich in nutrition, vitamin A and D, and you should eat more fresh vegetables and fruits. Recent studies have shown that carotene can significantly reduce the ability of cells to synthesize DNA and RNA; after treating lung cancer cells with carotene, the amount of ras oncogene p21 protein in lung cancer cells can be significantly reduced; after feeding mice with carotene, the spontaneous metastasis of lung adenocarcinoma in mice can be completely inhibited. Therefore, eating more foods high in carotene is beneficial for the prevention of lung cancer.

Among the above lung cancer prevention measures, some are measures that should be taken by the government and society; the other part is what individuals can do, such as banning smoking. Experts from the World Health Organization predict that if my country does not take strong measures to ban smoking from now on, by the middle of the 21st century, it will be the country with the highest incidence of lung cancer in the world. Therefore, to prevent lung cancer and reduce the incidence and mortality of lung cancer, we must start with each individual, not smoking, and at the same time publicize the harm of smoking.

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