If the body is full of positive energy, it will be strong against evil and not easy to develop; if the positive energy is not enough, the function of internal organs will be reduced, the flow of Qi, blood and fluid will be unfavorable, and the tumor will be formed after a long period of time, so it is fundamental to protect the positive energy of tumor patients. First, do not eat cold and raw food. If the spleen and stomach are corrupted, the diet will not go in. If the spleen and stomach are corrupted, the diet will not go in, and if the diet is barely eaten, it will not be able to transform the water and grain into essence and blood, which is not conducive to the digestion and absorption of nutrients. Second, be careful with bitter-cold drugs. Many patients blindly superstitiously believe in certain anti-cancer Chinese medicines, such as snake tongue herb, half-branch lotus, red bean curd, mountain cicada, etc. They think that clearing heat and detoxifying, breaking blood and removing blood stasis can fight against tumors, but they do not know that the bitter cold defeats the stomach’s righteousness and the damage is not worth the loss. Third, pay attention to keep warm. When you sweat, you must avoid going out to blow, and usually pay attention to the warmth of your legs and feet, head and neck, so that external evil is not easy to invade. Fourth, insist on going to bed early and knocking on the gall bladder meridian. This enables the collection and generation of positive qi and helps it to be cultivated and brought into play. “If the body’s internal organs function normally, the positive qi is strong, the qi and blood are full, and the external guards are tight, the tumor should not grow.