To increase resistance, you can supplement your diet with foods that contain high quality protein, vitamins, and other trace elements that your body needs for a long time. However, since immunity is mainly affected by the body’s immune tissues and organs, it cannot be supplemented by food and requires the application of immunity-boosting drugs. In addition, you can also help enhance resistance by strengthening physical exercise and avoiding staying up late. A, resistance 1, food containing high quality protein: food rich in high quality protein are lean meat, eggs, milk, mushrooms, as well as soy products, seafood, etc.. High-quality protein can help the body’s cells to improve their activity, thus enhancing the body’s resistance to disease to some extent. For example, the lactoferrin in some dairy products combined with iron can help inhibit the growth and reproduction of Salmonella typhi and pathogenic E. coli; 2, vitamin-rich foods: fresh vegetables and fruits, such as celery, pumpkin, carrots, as well as apples, grapefruit, bananas, lemons, etc.. Vitamins are involved in a variety of metabolic processes in the body and are important catalysts for many reactions in the body. Vitamin-rich foods can help maintain the normal level of vitamins in the body, thereby improving metabolic capacity and helping to strengthen the body; 3, foods containing trace elements: such as seaweed, fungus, dragon fruit, ribs, eggs and other foods. Trace elements are involved in the metabolic process of a variety of enzymes, hormones and nucleic acids in the body, thus playing a supporting role in the body and helping to maintain a healthy state. Secondly, immunity Some immune agents such as biological agents can improve the low immune function caused by cancer patients or other diseases, but they are generally not applicable to normal people. If immunity needs to be improved, patients can apply some herbal medicines for regulation under the guidance of physicians.