They are in constant fear that once they have lung cancer, even if it is not lung cancer, but tuberculosis similar to lung cancer, they may die of fear. Nowadays, tumor has become a common chronic disease, and the cure rate is getting higher and higher. In terms of lung cancer, the five-year survival period has doubled compared to ten years ago, and with the emergence of molecular targeted drugs in recent years, the survival period will become longer and longer. Lung cancer should be regarded as a chronic disease like emphysema and cardiac insufficiency, in fact, not many patients with chronic heart failure survive for more than five years, but people seem to be less nervous when they have heart failure, but more nervous when they have lung cancer, as a result, this kind of nervousness really tends to “kill” them. About one-third of patients are killed by the enormous psychological stress. This is because it causes fear, sadness, depression, immune system breakdown, and endocrine dysregulation. The reason for this frightening situation is that people do not have an objective understanding of tumors. Therefore, it is necessary to understand why lung cancer should exist. In fact, the occurrence of tumor is a normal process in biological evolution, and tumor may arise in everyone’s body. It has been reported that in 200 cases of elderly people over 75 years old, tumors were found in about 48% of their bodies after death, some of them were already very large or more than one, and they were not known before they died. Tumor is actually a proliferation mechanism of the organism, only that this mechanism deviates from the constraints of the human body. Without this mechanism, the body would not be able to grow, our wounds would be difficult to heal, and the intestinal mucosa would fall off in a few days without getting regenerated. As we age, the incidence of tumor is also increasing, just like the zou-rips, hypertension and osteoporosis in the elderly, it is just an old age disease and there is no need to be afraid of it. The fear of tumor is much higher than the fear of chronic heart failure. Another reason for this is the information that floods various media, they are willing to exaggerate the danger of tumor in order to promote a kind of health care product or medicine to “intimidate” the public, this is also the successful experience of some advertising planning, they need to create this atmosphere. Nowadays, the mainstream view is to let patients look at lung cancer with a normal heart, that is, “living in peace with tumor” advocated by academician Sun Yan. We should live in peace with the tumor, it grows and I live. This will significantly prolong the survival period and improve the quality of life. Therefore, for elderly tumor patients who do not have the chance to have surgery, there is no need to kill tumor cells through radiotherapy and use the human body as an arena of confrontation. (But you can have a purpose or try targeted drugs.)