What is the anti-aging principle of immune cells?

The aging of human body begins with the aging of cells. Cell life is limited, and cells naturally age, so the human body also begins to age. Aging and physical decline are natural laws and irresistible, but what are the reasons? Scientific research shows that human immunity declines with age, and modern people are troubled by environmental pollution, life pressure and unhealthy lifestyle, which leads to premature decline of immune function, invasion of viruses and bacteria, tumors and other major diseases. There are a large number of immune cells in human body, and the main immune cells are NK cells, T cells, B cells and phagocytes. They have a powerful killing effect on bacteria, viruses and cancer cells. At the same time, they also adhere to the principle of "killing all non-China people". When immune cells destroy the invading harmful substances (that is, rejection), people will not get sick. When immune cells protect their own tissues and have a stable structure, they can achieve the purpose of anti-aging.