Compared with other cancers, lung cancer is more like a “latent killer”. When most patients are diagnosed with lung cancer, they are already in the advanced stage and the cancer cells have spread to other parts of the body. Therefore, many people think that if surgery is not possible for mid- to late-stage lung cancer, there is no need for further treatment, and there is no need for chemotherapy, because it is likely to “spend a lot of money and not live long”. Experts say that this is a cognitive misconception, and the result is very different between treatment and no treatment. If no treatment is given, the patient can only survive for about half a year to one year, while the patient’s quality of survival can be significantly improved after taking a combination of surgery, drugs, immunotherapy and other methods. In addition, experts remind that the diet of lung cancer patients is very important. To live long and well, you must stay away from sugar and food additives. Advanced lung cancer: different results between treatment and non-treatment Professor Chen Zhenguang, director of cardiothoracic surgery of the First Hospital of Sun Yat-sen University East Hospital, introduced that lung cancer is highly malignant and has poor prognosis. Clinically, because some lung cancer patients do not have timely diagnosis and treatment, when diagnosed, the disease has already developed to the middle and late stage, and many patients have metastasized and spread to many parts of the body, about 80% of them die within one year after diagnosis, and the median survival period is about 6-8 months, among which 4-9 months for adenocarcinoma, 5 months for small cell carcinoma and 7-8 months for squamous carcinoma. Therefore, some patients think that since the disease has developed to the middle and late stage, the time to live is similar whether treated or not, so they simply don’t treat it. ”In fact, it is not.” Prof. Chen Zhenguang introduced that statistics show that patients with advanced lung cancer can only survive 3 to 4 months without treatment, while with surgery, single chemotherapy drugs, targeted drugs combined with immunotherapy, cell therapy and other techniques, patients’ survival quality is significantly improved, and some patients can even survive 3 to 5 years. It can be seen that the outcome of treatment or no treatment is very different. Especially those patients with non-small cell lung cancer, if there is no distant lymphatic metastasis and no spread to organs such as liver, brain, bones and adrenal glands, they can undergo surgery according to the guidance of international guidelines for lung cancer treatment, which can maximize life prolongation and improve the quality of survival. “What if I am at an advanced stage and the tumor is too big for surgery?” Some other patients have such doubts, Chen Zhenguang said, which actually involves the indications for lung cancer surgery. Some patients either have tumors that are too large for immediate surgery, or tumors that are not large but have distant metastases. Chen said that for these patients, chemotherapy can be used to shrink the tumor to reduce the stage, and then seize the opportunity to perform radical resection. Combined with various technologies such as chemotherapy drugs, targeted drugs, immunotherapy, cell therapy and even Chinese medicine adjuvant therapy, patients may achieve the goal of long-term survival, otherwise everything is free of discussion. Lung cancer treatment should not blindly believe in various tests and single means, but the most reliable one is “private ordering”. How to select drugs that predict relative sensitivity and avoid drugs that predict relative resistance has become the key to improve the efficacy. With the development of pharmacogenomics and pharmacogenetics that target drug sensitivity-related markers for detection, individualized drug therapy has become possible. Individualized therapy, or “personal tailoring” as it is often called, is the use of the best chemotherapy or targeted drug for a patient based on his or her tumor pathology and genetic characteristics to improve drug sensitivity and prolong median survival time while minimizing toxic side effects. ”But one should not be superstitious about such tests.” Chen Zinguang introduced, not to mention that these tests are more used in research, more importantly, the reason is that, at present, the “cost performance” of the test is not high, patients may spend a lot of money and not get satisfactory results, “some institutions exaggerate the importance of genetic testing, in fact, these tests are not Clinically, when we choose targeted drugs or chemotherapy drugs, we should mainly base on patients’ individual conditions and genetic test results, combine the guidelines of lung cancer treatment and the experience of different disciplines, and give reasonable treatment plans through the collaboration of multiple disciplines, which is believed to be more reliable in this “personalized” way. “ As for diet, the farther away from sugar, cola and cookies, the better. During chemotherapy, while killing tumor cells, the drugs will inevitably cause certain damage to normal cells and produce corresponding toxic side effects, such as decreased immune function, leukopenia, gastrointestinal mucosal ulcers and hair loss. At this time, the patient’s diet should be changed accordingly, Chen Zhenguang reminded that the following four points can be referred to: 1. The patient’s appetite is not good, and the patient’s appetite is not good. “When cooking can be less oil, appropriate more salt, or through soy sauce, ginger and garlic flavor, to ensure that patients can eat.” 2, eat less sugar-rich food Chen Zhenguang introduced that the ability of tumor cells to absorb glucose is more than 10 times that of normal cells, but the way cancer cells use glucose is very different from normal cells. A glucose gets completely burned in the body and can produce a lot of heat. But cancer cells only use about 5% of that heat, in fact, they throw it away as waste just after it starts to burn. It is like eating an apple, cancer cells are throwing away each apple with only one bite and creating a lot of waste – lactic acid. Lactic acid suppresses T-cell activity and therefore suppresses the immune system. “Cancer cells in human body not only eat a large amount of glucose to maintain their rapid growth needs, but also spit out harmful substances to suppress the body’s immunity, therefore, tumor patients must eat less or no sugary food. Internationally, it is generally believed that the daily intake of sugar per person should be within 50 grams.” 3, to stay away from phosphate-based food additives Researchers from Seoul National University in Korea found in animal tests that phosphate-based food additives not only accelerate the growth of lung cancer, but also promote the occurrence of lung cancer. The study was published in the American Journal of Respiratory and Emergency Medicine. The researchers found that inorganic phosphorus intake can activate certain key signaling channels in lung cancer cells. If 0.5 to 1.0 percent inorganic phosphorus (equivalent to the daily human intake) was added to the feed of mice with lung cancer, the volume of lung cancer in the mice was significantly larger after four weeks than in mice that ate feed without inorganic phosphorus. Chen Zhenguang introduced that cola, lemon soda, chocolate, ice cream, cookies, ketchup, mayonnaise, meat products and spontaneous flour all contain phosphate food additives, and lung cancer patients must stay away from these foods. 4. More high protein foods Chen Zhenguang said that patients should supplement high protein foods, such as milk, lean meat, fish, animal liver, red dates, adzuki beans, etc. River crabs, eels, black fish, beef, etc. also help to raise white blood cells. If there is loss of appetite and indigestion, add spleen-healthy and appetizing foods, such as hawthorn, white lentils, radish, mushrooms, and peel of Chen. In addition, a variety of edible mushrooms such as shiitake and reishi have certain anti-cancer effects, especially shiitake has more nutritional value than all mushrooms, contains 7 kinds of essential amino acids, contains calcium, copper, iron, manganese and other trace elements, and also contains a variety of sugars and enzymes, which can improve and enhance human immunity and can be eaten appropriately.