Cancer is not a terminal disease. People often talk about cancer, and there is even the saying that “a cure is not cancer, but cancer cannot be cured”. The World Health Organization has analyzed a lot of data and put forward the famous 3 1/3 view, which means that 1/3 of cancers can be prevented, 1/3 of cancers can be cured, and 1/3 of cancers can be treated to improve the quality of life and prolong the survival time. Therefore, it is lack of scientific attitude to describe a disease like cancer, which is completely curable, as a terminal disease. In fact, with the advancement of medicine and technology, the cure rate of cancer is increasing. From the information published by the World Health Organization, the proportion of cancer patients who were cured after the best treatment was about 1/5 in the 1930s, and has increased year by year since then, to about 1/4 in the 1940s and 1/3 in the 1960s, while about 40% of patients can be cured in recent years. In the whole process of treatment and recovery of cancer patients, experts have found that psychological factors have an irreplaceable role. The current consensus is that bad mood will reduce the immune function of the body, thus weakening the immune system’s role in identifying and killing cancer cells; on the contrary, good mood can balance and improve the immune function of the body, so that cancer cells will be in a self-limiting state and eventually be eliminated by the immune system of the body. This is the powerful role of psychological factors. In fact, no matter what kind of disease you have, the most terrible thing is not the disease itself, but the fear and frustration of the disease, and the complete loss of courage to live. Once diagnosed with cancer, anxiety, sadness and hesitation will definitely not help, but will only aggravate the disease. Only a positive, active and open attitude, keeping oneself in a good mental state, firmly believing in overcoming cancer and cooperating with doctors can help to stabilize and improve the disease, improve the quality of survival and prolong the survival period.