The 2012 China Tumor Registry Annual Report released by the National Tumor Registry recently shows that cancer in China has shown a trend of younger and higher incidence and mortality in the past 20 years, with about 3.12 million new tumor cases each year, and 6 people are diagnosed with cancer every minute. The age of onset of cancers such as breast cancer, lung cancer, colon cancer and thyroid cancer are all appearing earlier. The trend of younger cancer and higher incidence and mortality rate means irreparable loss for both society and families. How to alleviate the youthfulness of cancer has become a major problem that needs to be solved by the society. Yanda Lu, Department of Radiotherapy, Affiliated Hospital of Hainan Medical College Recently, according to a report on the prediction of causes of death published by the World Health Organization, cancer will continue to rank as the number one cause of human death in the next 100 years. A report released by the World Cancer Research Fund shows that 39% of the 12 major cancers can be prevented by improving diet, strengthening exercise and reducing alcohol consumption, and a healthy lifestyle can reduce the chance of cancer by 1/3. Experts have summarized some of the precautions against cancer in life with numbers for people to remember. ”1″ 1 pound of fruits and vegetables per day The U.S. Department of Agriculture, American Cancer Society and the National Cancer Institute jointly recommend eating at least 400 grams to 500 grams of vegetables or fruits per day to prevent cancer. According to the recommendations of the Dietary Guidelines for Chinese Residents (2007 edition), each person should consume at least 500 grams of fruits and vegetables per day. ”1″ 1 physical examination per year There is a consensus among domestic and foreign experts that physical examination should be a routine item for every adult every year, and cancer can be detected early through cancer prevention screening. Therefore, it is best to have a physical examination once a year. ”2″ Stay away from second-hand smoke Several studies show that second-hand smoke contains more than 40 kinds of toxic substances related to cancer, and the risk of cancer is 7-11 times higher for passive smokers than non-smokers. ”4″ home decoration note 4 less in home decoration, should be less use of man-made panels. This is because the adhesives used in artificial lumber contain formaldehyde, which is a relatively clear carcinogen. If the home is paved with laminate flooring and other artificial flooring, to try to choose less man-made sheet metal furniture. In addition, it is better to use less marble and granite in home decoration: granite, marble and other products contain radon, a carcinogen. Use less oil-based paint: oil-based paint usually uses organic solutions such as benzene, formaldehyde, xylene and toluene as diluents, which are harmful to human body. Water-based paint is much more environmentally friendly and green, and can be used more often. Less disinfectant solution in the bathroom: some disinfectant solutions contain dichlorobenzene, which can stimulate the respiratory tract and induce lung cancer, etc. ”7″ Sleep enough for 7 hours The American Institute of Cancer Research found that sleep can affect the balance of human hormones, and hormone imbalance can have an impact on whether a person suffers from cancer. Women who sleep less than 7 hours a night are 47% more likely to develop cancer than women who actively exercise and get enough sleep. ”25″ Body mass index ≤ 25 Body mass index is an internationally recognized indicator for physical evaluation, and is an important method for evaluating nutritional status and obesity level. Its formula is: body mass index (BMI) = weight (kg) / height (m) squared, with a normal value of 20 to 25. Researchers found that for every 5 points increase in BMI in men, the risk of esophageal cancer will increase by 52%; for every 5 points increase in BMI in women, the risk of cervical cancer or gallbladder cancer will increase by 59%. In addition, pancreatic cancer, rectal cancer, kidney cancer and breast cancer and obesity also have a certain relationship. ”30″ 30 minutes of aerobic exercise U.S. experts have conducted a health analysis of 5,398 women at a university and found that the likelihood of ovarian, cervical and vaginal cancer in women who participate in sports is 60% lower than in women who do not participate in sports; the likelihood of breast cancer is 50% higher than in women who do not participate in sports. Studies have shown that 30 minutes or more of aerobic exercise per day can help reduce the risk of cancer.