Several misconceptions about cancer

Myth 1: Cancer is mainly determined by genes A survey conducted by a Taiwanese website found that 1/5 respondents believe that cancer is mainly caused by hereditary genes. Correct view: In fact, heredity is only one of the factors in the occurrence of cancer. Environmental pollution, poor living and eating habits, excessive stress, etc., are all closely related to the occurrence of cancer. Some cancers have a high hereditary risk and require attention to screening, for example, if a mother has breast cancer, the risk of her daughter developing breast cancer is two to three times higher than that of the general population. However, the genetic risk of some cancers is very small, for example, only about 5% of colorectal cancer patients are genetically related. Research has confirmed that, compared with genes, smoking, alcoholism, staying up late and other bad habits, air pollution, chemical and pesticide residues and other environmental pollution, more serious harm to the body. Myth 2: Cancer is not preventable Many people believe that cancer cannot be prevented and do not know what to pay attention to in their lives. Correct point of view: the initiative to prevent cancer is in everyone’s own hands. The American Institute for Cancer Research points out that the easiest way to prevent cancer is to eat more fruits and vegetables, which can reduce the chance of cancer by 20%, and suggests that the public should eat at least 5 servings of fruits and vegetables daily (1 serving of about 85 grams), reduce the intake of animal fats, maintain a standard body weight, exercise for at least 30 minutes a day, and stop smoking and limit the use of alcohol. It is not difficult to stay away from cancer as long as you stick to the defense of “prevention is more important than cure”, adopt a healthy lifestyle and avoid known cancer risk factors. Myth 3: Vegetarians are not susceptible to cancer Survey shows that 24% of the respondents firmly believe that vegetarians have a low risk of cancer. Correct point of view: Studies have shown that people who often eat a lot of meat and fish do have a higher risk of cancer, while vegetarians eat fruits and vegetables every day, dietary fiber intake is sufficient, the risk of colorectal cancer is lower than that of normal people. However, long-term vegetarianism may cause nutritional imbalance. The Austrian study found that vegetarians may have an increased risk of cancer due to a low intake of animal fats, which is 2 to 2.5 times higher than meat lovers. If you want to prevent cancer, a balanced diet is especially important, do not be biased or picky about what you eat, try to take natural ingredients as the main, processed products to the limit of 1 to 2 times a week, and eat 5 servings of different colors of fruits and vegetables every day. Myth 4, more moles are prone to skin cancer “People with more moles have a high risk of cancer.” The survey shows that 61% of middle-aged and elderly people believe this view. Correct point of view: Moles are categorized into primary moles that are born and moles that are generated by the influence of the environment and physical condition. Moles may increase during puberty and female pregnancy, and peak in middle age. Most moles are benign dark pigmented moles and are not a cause for concern. If a mole has abnormal changes in color, size, shape, etc., special attention should be paid to it, which may be manifested in the following characteristics: gradually spreading outward, with a diameter larger than 0.6 cm; peeling, bleeding, secretion, etc.; asymmetric shape, irregular edges, blurring; change in color, from brown to black or dark blue; a large mole next to a lot of small moles grow out. Myth 5, big breasts are prone to breast cancer “big breasts are prone to breast cancer” is also a lot of people’s misunderstanding, but in fact, this is not scientific. Correct point of view: large breasts are not a high-risk factor for breast cancer, family history is, other risk factors include: early menarche, late menopause, unmarried, childless, late childbearing, not breastfeeding and so on. It is often found in outpatient clinics that most breast cancer patients come to the clinic only when they feel hard lumps or pain when wearing underwear, when the cancer is mostly in stage 2 or later, and may need to have their breasts removed. If early detection and early treatment, the cure rate of breast cancer is very high, and the 5-year survival rate of stage 0 to 1 cases is as high as 95%. Myth 6, eat organic food can prevent cancer, choose to buy organic food is the new trend of health in recent years. The survey found that 39% of the respondents aged 50 to 59 years old think that eating organic food can prevent cancer, while in the 13 to 19 years old crowd, this proportion is as high as 53%. Correct point of view: organic food in the planting or cultivation process is completely free of the use of chemical pesticides, chemical fertilizers, herbicides and other non-natural drugs, the safety of ingredients is higher. Nowadays, organic food is mostly vegetables and fruits. A nine-year study by the University of Oxford in the United Kingdom showed that women who consume organic food for a long time have no difference in cancer risk from women who never eat organic food. To eat healthy, you need to diversify your diet, eat more local and seasonal foods, and eat a little bit of nuts every day. Myth 7, acidic body prone to cancer “The human body is only weakly alkaline is healthy”, “acidic body is particularly susceptible to cancer” …… in recent years” Acidic and alkaline body” has been widely spread, and has become the concept of some health care advertisements and health TV programs. Correct point of view: scientifically there is no acid-alkaline constitution, pure nonsense. First of all, the human body has a variety of fluids, including intracellular fluid, extracellular fluid (tissue fluid, blood and lymphatic fluid), digestive system secretion of a variety of digestive fluids, as well as sweat, urine, etc., these fluids have their own acidity and alkalinity, the so-called “body fluids” is very ambiguous. Myth 8: Fasting can kill cancer cells Many cancer patients believe that they can starve cancer cells to death by not allowing them to take in any nutrition, so they adopt “fasting therapy” to control cancer. According to the survey, 14% of the middle-aged respondents agreed with this view, and the proportion of people over 60 years old reached 22%. Correct viewpoint: clinically, there were liver cancer patients who only drank water and ate a small amount of fruits and vegetables in order to “starve to death” the cancer cells, but they were starved to death. Generally speaking, fasting cancer patients can lose 10 kilograms of body weight in a week, and their immunity is lowered, which makes it easier for cancer cells to survive. Studies have found that sugar is the favorite food of cancer cells, and the incidence of colorectal cancer, breast cancer, endometrial cancer and other cancers are related to the love of sugar. Research at Harvard Medical School in the United States found that women who love to eat high glycemic index foods have a three times higher risk of colorectal cancer than normal people. Refined sugar and refined food, such as sweet drinks, candy, pastries and other snacks belong to this type of food, people had better eat less. Myth 9: Folk secret recipe for curing cancer It is often rumored that someone has a secret recipe for curing cancer that has been passed down from generation to generation, and has cured a certain cancer patient, and many cancer patients tend to be over-ambitious, and a lot of patients have been deceived, wasting money and losing the best time for treatment. Correct point of view: Some cancer treatment “professionals”, “ancestral family”, not only did not receive formal medical education, and even some general medical knowledge are not; its labeled cured patients, may be misdiagnosed, not the tumor; in addition, the treatment of cancer patients Most of the cancer patients are treated with a variety of methods, it is difficult to determine whether one of these methods plays a role or the result of the combined effect. Myth 10, health care products can help fight cancer Nowadays, a variety of “anti-cancer drugs” publicity is all over the place, but some of the “health” number of health care drugs, nutritional products have no therapeutic effect; some of them claimed that the ingredients are pure traditional Chinese medicine, and experiments have proved the effectiveness of the “medicine”. Effective “medicines” can not be trusted, the so-called “experimental results”, more than 95% are the results of animal experiments, rather than clinical application of the results of patients, which is only a business “advertising techniques This is just a kind of “advertising technique” of the businessmen. Correct point of view: supplements can only be used as nutritional support for adjuvant therapy, and must be used in conjunction with surgery, radiotherapy and chemotherapy in order to play a certain therapeutic effect; if you want to rely on health care products and nutritional supplements to treat tumors, then it is biased. Myth 11: Looking forward to new technology and new drugs Nowadays, many new technologies and chemotherapeutic items for tumor treatment emerge every year. These new technologies and new drugs do bring gospel to some patients, however, some patients mistakenly think that only these new technologies or new drugs are the best cure, and they insist on using these drugs or refuse other therapies by waiting for the emergence of new drugs. Correct point of view: there are dozens of tumor chemotherapeutic drugs in clinical application, and before implementing chemotherapy for tumor patients, a comprehensive analysis will be made according to the patient’s stage of illness, physical condition and other circumstances, rather than preferring new drugs or high-priced drugs. Otherwise, not only does it not bring better therapeutic effect to the patients, but on the contrary, it adds unnecessary financial burden to the patients.