What is a chronic disease? Chronic diseases are diseases that have a long and usually slow progression. The World Health Organization defines heart disease, stroke, cancer, chronic respiratory disease, and diabetes as chronic diseases. Chronic diseases are by far the leading cause of death in the world, accounting for 63% of all deaths. Of the 36 million people who died from chronic diseases in 2008, 29% were under the age of 60 and half were women. Recently, the World Health Organization released 3 bad lifestyles that lead to increased mortality from 4 chronic diseases that can ultimately kill 50% of people. The three types of life refer to: smoking, unreasonable diet and lack of physical activity. 4 diseases include: cardiovascular diseases, malignant tumors, respiratory diseases and diabetes. 1. The “three 1/3” of cancer prevention and control, cancer is one of the leading causes of death worldwide. According to WHO estimates, without intervention, 84 million people will die of cancer between 2005 and 2015. Currently, 1.4 million to 1.5 million people die from cancer each year in China, compared to 700,000 in the 1970s, and cancer has doubled in the last three decades. As early as the 1980s, the World Health Organization proposed the “3 1/3” of cancer prevention and control – 1/3 of cancers can be prevented, 1/3 of cancers can be cured through early detection and treatment, and 1/3 of cancers can be prolonged through active treatment. 1/3 of cancers can be prolonged and the quality of life can be improved through active treatment. The first 1/3 can be prevented, which is equivalent to not having cancer yet; the key to the second 1/3 is early detection if detected early, cancer can be cured; the third 1/3 can only prolong life but not cure because it is found late. Thus, early detection is necessary to cure cancer. 2. Healthy lifestyle to stay away from cancer. Exercise, healthy eating habits, and timely treatment of precancerous lesions enable us to stay away from cancer! The first is to quit smoking. Smoking can cause many forms of cancer, including lung, esophageal, throat, oral cavity, pharynx, kidney, bladder, pancreatic, stomach and cervical cancers. Approximately 70 percent of the lung cancer burden is caused by smoking alone. Secondhand smoke has been shown to cause lung cancer in nonsmokers. Smokeless tobacco can cause oral cancer, esophageal cancer and pancreatic cancer. 3. Adjusting diet is another important way to control cancer. Overweight and obesity are associated with many types of cancer, such as esophageal, colorectal, breast, endometrial, and kidney cancers. A diet high in fruits and vegetables may be protective against many types of cancer. Conversely, excessive consumption of red meat and cured meats may increase the risk of colorectal cancer. In addition, healthy eating habits that prevent diet-related cancers may also reduce the risk of cardiovascular disease. Regular physical activity and maintaining a healthy weight combined with a healthy diet can significantly reduce the risk of cancer. National policies and programs should be implemented to raise awareness and reduce exposure to cancer risk factors and to ensure that people are provided with the information and support they need to adopt a healthy lifestyle. 4. Active detection and treatment of precancerous lesions. The intermediate stage from normal tissue to the occurrence of cancer is called precancerous lesions. Precancerous lesions refer to tissue cell chemosis and significant hyperplasia, which also contain independent diseases. For example, breast disease, familial papillary adenoma of the rectum, chronic gastric ulcer, liver cirrhosis, nevus and skin mucosal syndrome of the skin. The occurrence of malignant tumors is a gradual evolutionary process. Some benign diseases in some organs on the human body are prone to abnormal cell proliferation with the tendency of malignant changes, and these abnormal proliferations with the tendency of cancerous changes are called precancerous lesions. Since the peak incidence age of cancer is in middle and old age, we suggest that people after 40 years old should have health checkups. 5. Cancer is not equal to death. In fact, quite a few cancers can be completely cured due to early detection and timely treatment. As long as we adhere to healthy living habits, exercise and medical checkups, we can stay away from cancer and don’t be afraid if we have cancer, a considerable number of patients can be treated. Keep away from cancer, start from me.