How to prevent “premature death” of cancer prevention Recently, admitted a few young lung cancer patients in their thirties, they are already more advanced patients at the time of consultation. At such an age, there is an old man, a young man, career and family responsibilities, but at present the disease treatment effect is not good. When faced with such patients, it is often saddening to lament the impermanence of life. Thinking of myself in the U.S. M. D. Anderson Cancer Center for further study during each MDT (Multidisciplinary Comprehensive Treatment) meeting, to do case reports, see patients in their fifties, the U.S. doctors will always say “so young” (so young)! It seems that the age of onset of many malignant tumors in China is significantly earlier than that in other countries, resulting in a marked increase in the number of young and middle-aged patients seen in clinical practice. In addition to the natural environment and other factors, poor living habits may be an important factor leading to the early onset of tumors in China. Recently, Prof. Peter Elwood of the School of Public Health, University of Wales, UK, published a study led by him, emphasizing five tips to avoid “early death”. The study looked at a large group of normal Welsh men over a period of 30 years, closely observing and documenting their smoking, drinking and dietary habits, and analyzing their impact on the risk of cardiovascular disease, diabetes, dementia, tumors and other diseases. The study identified five habits that can significantly reduce the risk of premature death, which can be called the “longevity code”, namely regular physical activity, not smoking, moderate alcohol consumption, maintaining a low body mass index, and eating mainly plant foods. These 5 habits can significantly reduce the incidence of certain diseases. People who were able to follow 4-5 of these rules had a 67% decrease in cardiovascular risk, a 73% decrease in diabetes risk, a 25% decrease in the risk of developing tumors, a 65% decrease in the risk of future dementia, and a 32% decrease in the overall associated mortality rate, as compared to those who followed only one of these rules. In that study, the decline in tumor risk was only associated with not smoking; other lifestyle habits did not affect tumor rates. The results of this study tell us that if we choose to choose to live well, we should choose to live a disciplined life, in which case we will be able to significantly reduce the risk of these diseases that lead to premature death, which can largely be avoided. For oncologists, the study re-emphasizes the importance of smoking cessation for tumor prevention. Prevention is always more effective than cure!