Immunosenescence detection

As the human immune system ages, immunity will gradually decline. This process is called "immunosenescence". This contributes to poor health among the elderly to a large extent. The human immune system is in a state of dynamic balance. If the immune function is too strong, it will easily cause the body's immune function to become hyperactive and cause autoimmune diseases (such as systemic lupus erythematosus, etc.); if the immune function is too weak, the body's resistance will decrease and it will be susceptible to infection. Bacterial infection. As age increases, the body's overall immunity declines, which is manifested at the cellular level as a decrease in functional immune cells and an increase in exhausted immune cells. Exhausted immune cells will lose the anti-infection function of normal immune cells, and instead secrete a large amount of inflammatory factors, causing a systemic inflammatory response; at the same time, with the reduction of functional cells, the body's immunity will decline, which is mainly manifested by vaccination. Reduced efficacy, increased susceptibility to viruses and bacteria, reappearance of latent viruses, increased risk of tumors, etc.