Food for preventing cancer
1) Milk and yogurt milk contain calcium and vitamin D, which can combine with carcinogens in the intestine to eliminate their harmful effects. Yogurt can inhibit the growth of tumor cells.
2) Honey and bee milk honey can promote metabolism, enhance the body's resistance, improve hematopoietic function and tissue repair. In recent years, it has been found that bee milk contains special bee lactic acid, which is effective in preventing and treating malignant tumors.
3) Tea contains catechins, which can remove radioactive substances from the body. Regular drinking tea for radiotherapy patients is beneficial to their recovery. Tea can also prevent dental caries.
4) The function of pollen food is to improve intelligence, promote development, enrich blood, increase endurance, delay aging, have hormone-like effects and enhance disease resistance.
5) Vegetables Fresh vegetables such as carrots, radishes, preserved fruits, eggplant, Chinese cabbage, etc. Contains interferon inducer, which can produce interferon by * * * cells. This substance can enhance the patient's resistance to disease and cancer. But it is easy to be damaged by heat, so the above. Food should be eaten raw. Many studies have confirmed that garlic has anti-cancer ability, and the fat-soluble volatile oil in garlic can activate macrophages and improve the anti-cancer ability of the body. It also contains a sulfur-containing compound, which can also kill tumor cells. Onion can also resist cancer, probably because it contains glutathione and multivitamins. It can be used for preventing lymphoma, bladder cancer, lung cancer and skin cancer.
6) Seafood can be used as dietotherapy food for patients with malignant tumor. The effective components of seaweed are mainly polysaccharide and sodium alginate. Sodium alginate can combine with radioactive strontium and be excreted. Eating kelp, seaweed and other foods often is good for your health. Shark cartilage can inhibit tumor growth, and shark fin has the ability to inhibit tumor infiltration around. Fish is rich in inorganic salts such as selenium, zinc, calcium and iodine, which is also good for anti-cancer.
7) Fungal foods contain polysaccharides and interferon inducers, which can inhibit tumors. Mushrooms have certain curative effects on gastric cancer, esophageal cancer, lung cancer and cervical cancer. Flammulina velutipes also has the same effect and has an inhibitory effect on tumors. Hericium erinaceus has curative effect on gastric cancer, which can prolong the survival time of patients and improve immunity. Tremella has an inhibitory effect on cancer. In recent years, it has been found that 90% of B- pachyman in Poria cocos can enhance immune function and has anticancer effect.
8) Fruit almond can improve immune function and inhibit cell canceration. It can relieve symptoms such as dry mouth, but it is not suitable for patients with inflammation, ulcer and nosebleeds. Mume also has anticancer effect, and jujube can inhibit the growth of tumor cells. Fig extract can be used for treating gastric cancer, laryngeal cancer, cervical cancer, bladder cancer, etc. Apples contain a lot of pectin, which can be combined with radioactive elements to promote their discharge. Papaya can prevent the spread and development of cancer.
9) Steroids extracted from other sweet potatoes can inhibit the development of breast cancer. Corn flour can inhibit tumor growth and reduce the side effects of anticancer drugs. Polysaccharide and coix lachryma-jobi fat in coix lachryma-jobi seed can enhance immune function and inhibit tumor cells.
How to prevent cancer?
(1) Food diversification: A wide variety of recipes can not only meet all kinds of nutrients needed by the body, but also inhibit harmful carcinogens.
(2) Drinking must be moderate: excessive drinking is harmful to health, and oral cancer, throat cancer, esophageal cancer and liver cancer are all related to excessive drinking. People who drink too much and smoke at the same time have a greater risk of cancer.
(3) Avoid excessive cholesterol intake: A low-fat diet can reduce the risk of breast cancer, prostate cancer, colon cancer and rectal cancer.
(4) Eat foods containing enough starch and cellulose: eat more fruits, vegetables, dried beans, whole grains, beans and their products. Increase the intake of starch and cellulose, which can reduce colon cancer and rectal cancer.
(5) Keep the nutritional balance and maintain the ideal weight. Avoid eating too much sugar.
Diet to prevent cancer 14 method
Cancer is the biggest enemy of human health at present. About 6 million people worldwide die of cancer every year, of which about 6,543.8+3,000 people in China die of cancer. However, cancer can be controlled. The World Cancer Research Foundation has devoted itself to the basic, clinical and anti-cancer research of cancer for many years, summed up the research results in the field of cancer in various countries in the world, and put forward 14 suggestions on preventing cancer from diet and health with broad scientific basis. Excerpts are as follows:
Suggestion 1: Arrange your diet reasonably. Plant foods, such as vegetables, fruits, cereals and beans, should account for more than 2/3 in the daily diet.
Recommendation 2: Control your weight and avoid being too light or too heavy. Weight gain in adulthood should not exceed 5 kg. Measured by body mass index (BMI) formula. (see formula) >>
Question 2: How to prevent all kinds of cancers? The secret of cancer prevention is very simple, that is, eating alkaline food often to prevent the accumulation of acidic waste, because the acidified body fluid environment is fertile ground for normal cells to become cancerous, and regulating the acid-base balance of body fluids is an effective way to prevent cancer.
A) Develop good living habits, quit smoking and limit alcohol. Smoking, the World Health Organization predicts that if people stop smoking, five years later, the number of cancer patients in the world will decrease1/3; Second, don't drink. Alcohol and tobacco are extremely acidic substances, and people who smoke and drink for a long time are prone to acidic constitution.
B) Don't eat too much salty and spicy food, and don't eat overheated, supercooled, expired or deteriorated food; People who are old and weak or have genetic diseases should eat some anti-cancer foods and alkaline foods with high alkali content to maintain a good mental state.
C) Have a good attitude to cope with pressure, combine work and rest, and don't be overtired. It can be seen that stress is an important cause of cancer. Traditional Chinese medicine believes that stress leads to overwork and weakness, which leads to the decline of immune function, endocrine disorder and metabolic disorder, leading to the deposition of acidic substances in the body; Stress can also lead to mental stress, causing qi stagnation and blood stasis, toxic fire invagination and so on.
D) Strengthen physical exercise, enhance physical fitness and do more exercise in the sun. Hyperhidrosis can excrete acidic substances in the body with sweat and avoid forming acidic constitution.
E) People with irregular living patterns and habits, such as singing karaoke all night, playing mahjong and going out at night, will aggravate the acidification of the body and are prone to cancer. It is necessary to develop good living habits, maintain a weak alkaline constitution, and keep all kinds of cancer diseases away from yourself.
F) Don't eat contaminated food, such as contaminated water, crops, poultry and fish eggs, moldy food, etc. Eat more green organic food to prevent diseases from entering the mouth.
Obesity is another carcinogen, especially for women. Overweight women are more likely to have endometrial pain. Fat seems to affect female hormones. The higher the fat content, the more estrogen. Estrogen * * * * and cell division of reproductive organs. Obesity may lead to colon cancer and rectal cancer in men; Female obesity may also cause gallbladder cancer, cervical cancer, uterine cancer and breast cancer.
Don't hold your urine
Studies have found that the occurrence of bladder cancer is related to a person's drinking and urination habits. Data show that people who urinate five times a day are more likely to develop bladder cancer than those who urinate more than six times. This is mainly because drinking less water and holding urine for a long time is easy to concentrate urine, and urine stays in the bladder for a long time, leading to cancer. Drinking more water and urinating frequently can play the role of "flushing" the bladder and eliminating harmful chemicals.
give up smoking
At present, smoking has become a worldwide social hazard, which seriously threatens human health. There is a comprehensive research report on the cancer incidence of smokers in the United States, Britain and Canada: the death rate of lung cancer of smokers is 10.8 times that of non-smokers, and the death rate of laryngeal cancer is 5.4 times that of non-smokers.
According to the report of authoritative cancer research institutions in the United States, bad living habits account for 35% of the carcinogenic factors, and smoking accounts for 30%, which together account for 65%. Smoking is very harmful to the fetus. If pregnant women smoke, their children's chances of developing cancer in the future will increase by 50% In view of this, paying attention to the prevention of the above links can keep most people away from cancer, and it is very important for everyone to start from themselves. Smoking is extremely dangerous for people of any age, and it can lead to cancer.
Nursing care after radiotherapy
Take good care of your skin after radiotherapy, don't scratch, don't bask in the sun, and don't wear tight clothes. Aloe ointment can soften and relieve itching. Other non-lotion can consult your radiotherapy doctor.
Eat less and eat more, not three meals a day.
If your treatment may reduce the white blood cell count, you should avoid contact with other patients. If you have a fever or feel sick, you should tell the doctor.
Nutrition and diet therapy
Medical research shows that the normal pH value of blood in our body should be between 7.35 and 7.45, urine around 6.5 and saliva around 6.8. In other words, our body fluids should be weakly alkaline to maintain normal physiological functions and normal metabolism.
However, according to the survey, the body fluid PH of cancer patients is 100% acidic. When the body fluid is acidic, the circulatory metabolism of human body will slow down, the dissolved oxygen of cells will decrease, and the cell activity will weaken. When the dissolved oxygen of cells drops to 65% of the normal value, normal cells will also die. & gt
Question 3: Can cancer be prevented? Cancer is basically a variation of cells in the body. The reason for this variation is that mistakes will occur when cells divide. This kind of mistake is inevitable, and external carcinogens, radiation, etc. are only incentives. Under normal circumstances, autoimmune cells will find mistakes in cell division, small mistakes and misunderstandings will be repaired, and big mistakes and misunderstandings will directly signal apoptosis, but there are always fish that slip through the net.
Therefore, the occurrence of cancer is only a matter of probability. The older you get, the more likely you are to get cancer.
Just like running a red light, a person running a red light once may have no consequences, but if he runs a red light every day, the longer he runs, the higher the possibility of being hit by a car. Of course, this person can avoid being hit by a car if he doesn't run a red light, but cells can't prevent cancer by stopping dividing.
From this perspective, cancer is not preventable.
Health experts always talk about preventing cancer, but in fact, they just reduce the chance of getting cancer. But what is the effect of the method they said? Is the incidence of cancer lower than that of people who didn't take measures? They can't tell these questions themselves, so I think these people are deceiving.
Some cancers, such as cervical cancer and liver cancer, are the result of viral infection. Liver cancer develops according to the steps of hepatitis B-cirrhosis-liver cancer after hepatitis B virus infection, and cervical cancer is also the result of hpv infection. Then we can prevent this part of cancer by avoiding these viruses, but this is not 100% prevention, because many people are not infected with these viruses but also have cervical cancer and liver cancer.
Question 4: How to prevent cancer? What should I pay attention to? 1. The close relationship between tobacco and cancer
Smoking is a risk factor for many cancers. Smoking is considered to be the main cause of lung cancer, oral cancer and esophageal cancer, and is related to the incidence of pancreatic cancer, bladder cancer, renal cancer, gastric cancer and cervical cancer. When smoking more than 20 cigarettes a day, the risk of dying of lung cancer is 15~25 times that of non-smokers. The earlier you start smoking, the higher the risk. Quitting smoking can reduce the risk, which is equivalent to normal people quitting smoking 15 years.
2. The relationship between diet and tumor
Some major cancers caused by non-smoking, such as breast cancer, colon cancer, prostate cancer and endometrial cancer, are obviously related to the intake of fat, especially animal fat. A diversified diet rich in fiber foods can reduce the risk of cancer, especially colorectal cancer. People who eat more fruits and vegetables have a lower incidence of many cancers than people who eat less. It goes without saying that eating more foods rich in cellulose, eating more fresh fruits and vegetables and reducing fat intake will help reduce the occurrence of tumors. In addition, gastrointestinal tumors are also related to food pollution, which is mainly caused by mold and mycotoxin, and the abuse of food additives can not be ignored.
3 keep a good attitude
The occurrence and development of tumor is related to immune dysfunction. The immune function of the body is controlled by an extremely complex and accurate immune regulation network. Any abnormality in any link will make the normal immune regulation out of balance, affect the immune defense, reduce the body's monitoring function on tumor cells or mutant cells, and lead to the occurrence of tumors. People with depressed mood are prone to grow tumors due to immune dysfunction, so maintaining a good attitude can prevent tumors.
The occurrence of tumor is closely related to living habits, and cancer is also showing a trend of youthfulness. Remind people to pay attention to their usual living habits. If you feel unwell, you should go to a regular hospital for examination and treatment in time, so as not to delay your illness and miss the best treatment opportunity.
Question 5: How to prevent cancer? We can't ignore any aspect of cancer prevention.
Pay attention to living habits
Often stay up late to smoke. Staying up late is easy to reduce immunity, weaken disease resistance and increase the risk of illness. As we all know, smoke contains many harmful substances. Regular smoking can easily affect the blood oxygen supply of cardiovascular system, promote the increase of cholesterol, and indirectly promote the formation of cancer and tumor. According to epidemiological investigation and clinical case data, more than 90% of lung cancer patients have a history of smoking.
pay attention to the diet
Some people like to eat pickled, smoked, fried and moldy foods, but they don't know that these foods are rich in many carcinogens, such as nitrite and acrylamide. If eaten for a long time, it is easy to provide a convenient environment for the growth of cancer cells and make them develop more crazily in the body.
In addition, due to the differences in geographical environment, people in some places may have a heavy taste, or like meat and spicy food, which is easy to damage the mucosal tissue in the intestine, cause digestive tract diseases, and increase the chance of suffering from digestive tract cancer.
do more exercise
Daily exercise can improve human immunity, strengthen the ability of metabolism and reduce the chance of getting sick.
Regulating emotion
If a person's mood is always negative, it is easy to reduce the immunity in the body, thus increasing the chance of getting sick.
Go to the hospital for regular check-ups.
The reason why cancer is so high is that many people think it is just a common disease when they feel unwell, but the way people treat diseases is to put it off until they are really uncomfortable. Therefore, if you want to prevent cancer well, you have to go to the hospital regularly. If you find discomfort, take timely measures to make cancer impossible.
Question 6: How to prevent all kinds of cancers? More than 80% of human tumors are caused by environmental factors, and many tumors can be prevented by preventing known carcinogenic factors and health education programs. So, how to prevent cancer? I have talked about ways to prevent cancer. Here, I will introduce in detail how to change bad lifestyle to prevent cancer.
Some achievements have been made in promoting the reduction of smoking. At present, efforts should be strengthened to promote smoking cessation, especially among teenagers, women and the third world. Passive smoking is usually more harmful to non-smokers, so smoking should be banned in all public places. Excessive drinking is another important cause of cancer, especially when drinking and smoking at the same time, the risk of cancer is greater. Avoiding excessive drinking and replacing all kinds of alcohol with non-alcoholic drinks can greatly reduce the occurrence of liver cancer and gastrointestinal cancer.
Advocate physical exercise, promote intestinal contraction, accelerate the excretion of carcinogens in food residues in the intestine, and reduce the occurrence of colon cancer. People who work in a sitting position for a long time should exercise regularly for 30 minutes at least three times a week. Doing radio gymnastics during office hours also helps to prevent cancer.
Excessive sunlight can easily cause skin cancer (basal cell carcinoma, squamous cell carcinoma, malignant melanoma, etc.). Farmers, sailors and outdoor workers should pay attention to prevent direct sunlight. Wearing a hat, protective clothing and sunscreen can prevent skin cancer.
Improving eating habits, eating more yellow fruits, dark green vegetables and high-fiber grains, and eating less fat, especially animal fat, can reduce the occurrence of colorectal cancer. Recent research shows that only reducing animal fat by 50% can reduce the incidence of colorectal cancer by half. Various high-fiber foods, such as green leafy vegetables, fruits, beans, cereals, nuts, etc., can effectively reduce the incidence of adenomatous sarcoidosis, thus reducing the incidence of colorectal cancer. Avoid eating too hard and spicy food, and eat less smoked and moldy food to prevent the occurrence of esophageal cancer and gastric cancer. Eating more foods rich in vitamins, such as yellow vegetables and fruits (rich in vitamin A), tomatoes and lemons (rich in vitamin C), cereals and vegetable oils (rich in vitamin E), can also prevent the occurrence of various cancers.
Obese people suffer from colorectal cancer, breast cancer, prostate cancer, uterine cancer and ovarian cancer, which are more harmful than people with normal weight. Proper exercise and limiting the intake of high-calorie foods (especially animal fat and sugar) can reduce the occurrence of these cancers.
The above suggestions are for reference only.
Question 7: How to prevent cancer is correct? Helping cancer patients to establish a good anti-cancer mentality is also conducive to the rehabilitation of patients. Cancer is one of the important diseases that endanger human health. Although great progress has been made in the fields of surgery, chemotherapy and radiotherapy, the mental health of patients has not been paid enough attention, and the research on psychosocial intervention is particularly lagging behind. According to foreign literature, about 34%~44% of cancer patients have obvious psychological stress reaction or psychological disorder, of which 18% is consistent with the diagnosis of major depressive episode. How to help cancer patients reduce their psychological burden, get rid of emotional troubles and improve their quality of life is one of the problems that oncology, psychiatry and psychology need to pay attention to. Many documents at home and abroad have confirmed that psychosocial factors have certain influence on the occurrence, development and prevention of cancer. Some data show that type C personality (cancer-prone personality) is closely related to the occurrence of cancer. This kind of people often have disappointment, helplessness and depression when faced with the punishment of losing their loved ones or setbacks from their loved ones. Their behaviors are avoidance, obedience and long-term depression. Once diagnosed, cancer is a powerful psychological pressure for such patients, which will produce anxiety, tension, anger, sadness and depression emotionally; Cognitive, will feel disappointed and helpless; In behavior, they will deny, avoid, repeatedly seek medical advice and avoid socializing; In social adaptation, it will affect family, marriage, work and society. The treatment of cancer will also have a certain psychological and physiological response to patients. For example, chemotherapy drugs can cause nausea and vomiting, radiotherapy can cause alopecia and weakness, and surgical treatment can cause pain, fear and self-image damage. Faced with many psychological problems of cancer patients, medical workers should adopt various treatment methods to fully improve the quality of life of patients. Relieve patients' emotions. Because most cancer patients have obvious anxiety, depression, tension, anger and worry, the staff should provide patients with a suitable environment and opportunities for expression, so that patients can vent their bad emotions, listen patiently and guide them, and their emotional problems can be alleviated. Introduce behavioral therapy technology. A considerable number of cancer patients are afraid of chemotherapy and radiotherapy, and even have avoidance behavior. For such patients, behavioral therapy such as gradual exposure and systematic desensitization can be used to relieve anxiety and depression and improve patients' self-confidence. Using cognitive therapy techniques. Many cancer patients are pessimistic and disappointed, thinking that getting cancer is equivalent to being sentenced to death. Doctors should tell patients about the current progress of surgery, chemotherapy drugs and radiotherapy, and introduce successful treatment cases. When the patient's cognition changes, his mood will improve. Distracted patients tend to focus on their own diseases and problems that will bring bad emotions, such as financial burden, child support, care for the elderly, interpersonal relationships and so on. According to different situations, patients are encouraged to cultivate corresponding hobbies, such as planting flowers, raising birds, calligraphy, art design and so on. And turn your attention to your hobbies, your bad mood will gradually improve. Couples * * * participate together. A healthy partner, as a doctor's collaborator, helps to supervise, observe and comfort patients, strengthen psychotherapy, promote and improve communication between husband and wife, and promote the coordination and stability of interpersonal relationships among family members, which is of positive significance to cancer patients. Many data at home and abroad show that a good mental state can improve the immunity of the body and is conducive to the treatment and rehabilitation of cancer. Cancer is a systemic genetic disease with many kinds, complicated causes, high mortality and many unrealistic legends, which is extremely scary. It is not difficult to imagine that once patients learn that they have cancer, they often have many adverse psychological reactions. This psychology is not only different from normal people, but also different from other patients. When a person has cancer, one of the most obvious emotional reactions is the anxiety caused by realizing that he is in danger of death. Anxiety is an emotional experience of anxiety, fear and anxiety. Anxiety comes from a dangerous and uncertain situation: can you cure your illness? How long can I live? Has the cancer spread? Wait a minute. These anxieties lead to the enhancement of psychological activities, and even lead to the phenomenon of rapid heartbeat, headache, panic, tension and fear. In severe cases, people can sit still and sleep. Anxiety is also an important inducement for patients to be more aggressive. It is completely understandable that cancer patients have the above-mentioned adverse psychological reactions. But at the same time, we should realize that they are very unfavorable for the treatment of diseases. So the important thing is >>
Question 8: How does diet prevent cancer? If you want to prevent cancer, you must start with your daily diet. Then 1. Pancreatic cancer. Bai Xiaofeng, deputy chief physician of abdominal surgery, pointed out that to prevent pancreatic cancer, we should eat more foods rich in folic acid, selenium and nickel, such as asparagus, beans, mushrooms, pears, lentils, eggs, tuna and sardines, and eat less bacon. Studies have found that even a small amount of processed meat can increase the fatal risk of pancreatic cancer. Eating 1 sausage or 2 slices of bacon every day will increase the risk of pancreatic cancer by 20%. At the same time, reduce sugar intake. As long as you drink two sweet drinks a day, the risk of pancreatic cancer will be 90% higher than that of people who don't drink. 2. lung cancer. People who don't eat or eat less vegetables and fruits have an increased risk of lung cancer 1.253.33 times. Carrots, green peppers, tomatoes, soybeans, mung beans and onions can reduce the risk of lung cancer by at least 20%. Of course, eating more apples can also get the same effect. 3. Nasopharyngeal cancer. Cantonese salted fish, also known as Cantonese cancer, is a traditional food in southern China, which is deeply loved by Cantonese people and is closely related to the incidence of nasopharyngeal carcinoma. Not only that, but also dried fish, sausages, shrimp paste, sauerkraut, pickles and so on. It will also increase the risk of nasopharyngeal carcinoma. Eating more fresh vegetables and fruits can reduce the incidence. 4. Breast cancer. About half of breast cancer is hormone-dependent tumor, and the occurrence and development of tumor in this part of patients have a certain relationship with the hormone level in the body. Yuan M, deputy chief physician of internal medicine, believes that this may have caused people's fear of any food containing hormones to some extent. In fact, soybean contains phytohormones, which are obviously different from animal estrogen, and no study has pointed out that phytohormones will increase the risk of breast cancer recurrence. Of course, foods containing animal estrogen should be another matter, such as propolis and some broilers with improper additives. 5. Colorectal cancer. Fat intake is directly proportional to the incidence of colon cancer, but different types of fat have completely different effects on the incidence of colon cancer. Saturated fat from animals is most closely related to the incidence of colon cancer, while vegetable oil has nothing to do with the incidence of colon cancer. It is suggested to control the intake of animal fat; Eat less or not eat foods rich in saturated fat and cholesterol, including lard, butter, fat, animal offal, roe, etc. Vegetable oil should also be * * *, 0.30 g (about 23 tablespoons) per person per day; Do not eat or eat less fried food; Eat foods containing unsaturated fatty acids in moderation, such as olive oil and tuna.
Question 9: How to prevent cancer How to prevent cancer in peacetime? 1. Professor Yang Binghui, Vice President of China Health Education Association (left) 2. Movie actor Li Wei (right) Moderator: Hello, audience friends! This is CCTV's live program "The Road to Health". Today we are going to talk about cancer prevention. First of all, let's look at a set of data: in the next 20 years, the number of new cancer patients in the world will increase from the current 6.5438+million to 50 million, and the number of cancer deaths will increase from 6 million to 6.5438+million. This is a very heavy set of data. Today we will talk about how to prevent cancer. Moderator: Can cancer be prevented? First of all, let's look at a short survey: crowd A: I think cancer can't be prevented, because if it can be prevented, so many people won't get cancer. Mass B: I don't think cancer is an infectious disease, and it can't be prevented. Mass C: I think that with the rapid development of science and technology, cancer should be preventable, but I can't say clearly how to prevent it. Yang Binghui: When a citizen talks about the prevention and treatment of infectious diseases, I want to talk about vaccination against smallpox. After the popularization of this preventive method, smallpox was eliminated worldwide. Many people think it would be great if cancer could be prevented by a method similar to vaccination. Unfortunately, there is no such method to prevent it at present, and even if there is, it may not be able to solve the comprehensive problems in the future. Because there are many causes of cancer, and a large part of them are closely related to our life behavior, it is very important to prevent cancer not by taking the so-called vaccine, but by changing our life behavior. Moderator: What is the relationship between lifestyle and cancer? Yang Binghui: Oncologists have noticed that there are many causes of cancer, including heredity and occupation, but most of them (80%) are caused by our daily life, so we put forward a concept called "lifestyle cancer", which actually means that people should pay attention to their lifestyle. Moderator: What is the specific lifestyle problem you understand? Li Lan: I think first of all, smoking is a bad lifestyle. Yang Binghui: Smoking is closely related to cancer. Our research shows that the possibility of smokers suffering from lung cancer is 8- 12 times that of non-smokers. There are about 600 kinds of harmful substances in cigarettes, of which about 40 kinds have been proved to be carcinogenic. Smoking may not only cause lung cancer, but also affect the throat, esophagus and bladder. Moderator: Is there any specific data that can explain the harm of smoking? Yang Binghui: The incidence of lung cancer in many countries in the world, including China, is increasing, but the report on the incidence of lung cancer in the United States released by the American Cancer Institute at the beginning of this year is very worthy of attention. The incidence of lung cancer in the United States also increased before the 1990s, and tended to be flat after the 1990s. However, since 1996, the incidence of lung cancer has decreased by 0.4 percentage points every year. In addition, the year before last, the European side also suggested that their incidence of lung cancer began to decline. So what is the reason? According to themselves, this is closely related to the improvement of life behavior represented by tobacco control. In the 1960s, there were many smokers in the United States, accounting for about 46% of the total population. After 30 years of hard work, the proportion of smokers has dropped to 24%, so their incidence of lung cancer has also dropped. I wish China could do such a good job in tobacco control. Among many factors leading to cancer, diet accounts for 35%, tobacco accounts for 30%, alcohol accounts for 3%, sex and fertility accounts for 7%, food additives account for 1%, and drugs account for 1%. Other Li Lan: I want to ask, is it possible to cause cancer by eating fried food frequently? Yang Binghui: Too much greasy diet will not only lead to arteriosclerosis and coronary heart disease, but also be related to cancer, especially intestinal cancer. Twenty years ago, the incidence of colorectal cancer in Shanghai ranked sixth among all kinds of cancers. In the past 20 years, with the improvement of living standards, the oil content in food has increased significantly, so the incidence of colorectal cancer has risen to the fourth place. Some people think that a high-fat diet will also promote breast cancer. Foreign studies show that high-fat diet may be related to prostate cancer and pancreatic cancer. Li Lan: You must put oil in your cooking. What do you want to eat? > & gt