According to the World Health Organization’s International Agency for Research on Cancer (IARC), the latest "Global Cancer Burden Data for 2020" shows: In 2020, there were 19.29 million new cancer cases in the world, of which 4.57 million were new cancers in China, accounting for 23.7% of the world. Ranked No. 1 in the world! The number of deaths exceeded 3 million. For details, see: The latest global cancer data for 2020: Breast cancer has replaced lung cancer as the world's largest cancer. The annual number of cancer deaths in China has exceeded 3 million.
        The 5-year survival rate of cancer in the United States is as high as 67% (for details, see: American Cancer Statistics 2021: 1.89 million new cases, 600,000 deaths, and a sharp decline in mortality for the second consecutive year), according to the latest "Report on Nutrition and Chronic Diseases of Chinese Residents" (2020)", the 5-year cancer survival rate in China is 40.5%, which is still not a small gap compared with the United States. According to Academician He Jie, director of the National Cancer Center, the main reason for the difference in the 5-year survival rate of cancer in my country compared with developed countries is that, on the one hand, most of the top malignant tumors in China have poor prognosis, such as lung cancer, Esophageal cancer, stomach cancer, liver cancer, etc. On the other hand, the number of people covered by cancer screening and early diagnosis and treatment in China is relatively small, and the public's awareness of taking the initiative to participate in cancer prevention physical examinations is not strong enough. Most patients are already in the middle and advanced stages when cancer is discovered, so the treatment effect Relatively poor. In addition, the level of standardized clinical diagnosis and treatment and homogeneity needs to be further improved.
        With the overall increase in the incidence and mortality of lung cancer worldwide, the 2021 cancer statistics report in the United States has been released, and the mortality rate has fallen sharply for two consecutive years! Why can the United States reduce the mortality rate of several major cancers, including lung cancer, year by year, and what can we learn to prevent cancer?

Cancer screening

        The improvement and promotion of early cancer screening technology will allow more cancer patients to receive timely intervention and treatment in the early detection and improve the overall five-year survival rate.
        Prostate cancer - the 5-year survival rate is about 99%!
        Thyroid cancer-the 5-year survival rate is about 98%! (Depending on different organization types)
        Testicular cancer - the 5-year survival rate is about 95.1%!
        Melanoma - The 5-year survival rate is about 91.7%!
        Early stage breast cancer ---- Early stage (stage 0 and stage 1) 5-year survival rate: 99%-100%!

1. Physical examination 15 years in advance, it is recommended that people over 35 years of age should have regular physical examination every year
        People with a genetic family history of tumors, in addition to general physical examinations, must go to cancer specialist hospitals or departments for cancer prevention physical examinations 15 to 20 years earlier than the age of cancer of their immediate family members. For example, if an immediate family member was diagnosed with cancer at the age of 55, then you should initiate a cancer prevention checkup when you are 35-40 years old.
        Human papillomavirus (HPV) testing can detect cervical cancer early.
        In many high-income countries, mammography (mammography) has reduced breast cancer mortality.
        Fecal occult blood test screening reduces the mortality rate of colorectal cancer in clinical trials.
        Low-dose spiral CT scanning can reduce lung cancer mortality and reduce mortality.
        Regular gastrointestinal endoscopy can reduce the mortality of gastric cancer and colorectal cancer.

2. The most important thing for people over 40
        People over the age of 40 have a significantly increased risk of cancer, and more attention needs to be paid to regular cancer screening.

Strictly control the main risk factors

1. No smoking
        Lung cancer accounts for more than a quarter of people who die of cancer each year in the United States. In the smoking control campaign that began in the 1960s, the number of smokers has continued to decline for 40 years, and the total ban on smoking in public places has followed strict legal restrictions on the time and place of smoking. From 1990 to the present, the adult smoking rate has dropped from 42.4% to 16.8%. The rate of lung cancer decreased by 45% in men and 19% in women.
        The decline in smoking directly reduces the morbidity and mortality of tobacco-related cancers (including lung cancer, laryngeal cancer, and bladder cancer), as well as overall morbidity and mortality.

2. Control weight
        Being overweight is associated with an increased risk of at least 13 cancers, including colorectal cancer, postmenopausal breast cancer, and advanced prostate cancer.
        Studies have found that being overweight is associated with poor survival in patients with breast, prostate, and colorectal cancer. Weight gain can cause approximately 8% of cancer cases and 7% of cancer deaths. Related report: Mendelian randomization said: obesity-related cancer risk is underestimated!

3. Increase exercise
        It is estimated that 3% of all new cancer cases in the United States (46,300 in 2014) can be attributed to insufficient physical activity. Physical exercise can reduce the risk of colorectal cancer, breast cancer and endometrial cancer. Physical exercise can improve the health-related quality of life of cancer survivors. For related reports, see: American Cancer Report: Insufficient exercise cancer may come to your door.

4. Control drinking
        Drinking alcohol can lead to the development of at least six cancers, including: colon cancer, rectal cancer, female breast cancer, head and neck cancer and esophageal cancer. ? For related reports, see: Is drinking moderately good for health? Research reveals that five types of cancer are directly related to alcohol.

5. Keep a cheerful mood
        A good mood helps the body's immune function and other functions. Excessive anxiety and even depression can cause many diseases. For related reports, see: Nature sub-Journal: Does emotion affect the effect of cancer treatment? No wonder optimistic people live long.

6, healthy eating
        A healthy diet can also reduce the incidence of obesity and reduce the risk of cancer from another angle. Like the Mediterranean diet, it has always been considered one of the best choices for a healthy diet. Related reports: AJCN: Mediterranean diet may reduce the incidence of colorectal cancer, Clin Nutrition: Unhealthy diet and sedentary behavior are related to cancer survival.