The role of immunity
Our immune system can resist the invasion of foreign creatures, just like the defense system in war. The human immune system can resist the invasion of pathogenic organisms such as bacteria, viruses and parasites, and destroy the toxic products secreted by them, thus protecting the body from damage.
Under normal circumstances, if the defense function is properly played, the body will not be infected and get sick. Otherwise, when the body is attacked by pathogens, pathological changes will occur, such as infectious pneumonia, viral hepatitis, AIDS and so on.
Immune stabilization function
Refers to the function of maintaining self-stability, that is, maintaining the balance of human internal environment and stable immune regulation function, so as to maintain the normal operation of human system and not deviate from the correct track.
Under normal circumstances, it can help the body to repair and remove aging and damaged tissues and cells without damaging the normal cells of the body. Once the immune stability is destroyed, autoimmune diseases will occur. Such as systemic lupus erythematosus and rheumatoid arthritis. All of them are caused by the immune response of the human body against its own cells, which leads to diseases.