Human health is determined by cells. The health of cells determines the health of human body. Cell is the basic unit of all physiological functions and biochemical reactions of human body, and all physiological functions and biochemical reactions in the body are carried out on cells and their products. Cells are composed of cell membrane, cytoplasm and nucleus. Cells constitute tissues, tissues constitute organs, and various organs are divided into different systems according to different functions, thus forming the human body. Once cells fail, it will lead to pathological changes in human tissues, organs and systems, and enter a sub-health and disease state.