In the face of viral threats such as mycoplasma and the new crown flu, immunity has become the most reliable guardian of our body. It is an important defense mechanism of the human body, which can help us resist the invasion of various bacteria and viruses and protect our health.
So, what is immunity?How can immunity be strengthened?Next, I will take you to find out.
1. What is immunity?
Immunity is the body's own defense mechanism, which is the body's ability to recognize and destroy any foreign substances (viruses, bacteria, etc.) that invade from abroad, to deal with aging, damage, death, degeneration of its own cells, and to recognize and deal with mutant cells and virus-infected cells in the body.
Immunity is the body's "fighting power" against diseases, and the triggers of these diseases may be external germs or internal abnormal cells. The body's immune system consists of immune organs, immune cells, and immunoactive substances.
Immune organs are like "headquarters", including bone marrow, thymus, tonsils, spleen and lymph nodes, etc., immune cells are like soldiers who "kill the enemy", such as lymphocytes and phagocytic cells, etc., and immunoactive substances are various antibodies in body fluids, which are equivalent to various ** in cooperation with "combat". Only when all parts work together can the immune function be effectively exerted.
Immunity can resist the invasion of foreign agents, such as bacteria, viruses, mycoplasma, parasites and other pathogenic microorganisms in nature, after entering the body, they can be quickly identified through immunity, and then eliminated accordingly, which is very important in preventing infectious diseases.
At present, there are hundreds of types of immune cells that we know. They have a clear division of labor and work together to protect human health. Immune cells are like police cells that protect human health, such as the well-known T cells, NK cells, macrophages, dendritic cells, B cells, etc., they patrol around, perform their duties, and together form a powerful police force.
2. What happens if you have low immunity?
Weakened immunity usually refers to a weakened immune defense, resulting in a weakened ability of the body to fight off pathogenic microorganisms, which in turn leads to an increased risk of infection.
It is generally believed that surgery, malnutrition, mental shock, psychological trauma, shock, fear, overwork, etc. will significantly reduce the body's immunity.
The main consequence of decreased immunity is that the human body is more susceptible to viruses, bacteria, etc., and the most direct manifestation is that it is particularly easy to catch a cold, and getting sick and taking medicine has become commonplace, and it takes a long time to recover from each illness.
Another manifestation of low immunity is that no matter what you do, you always feel tired, even if you don't need much physical work, you feel tired at every turn. I often worry about whether there is something wrong with my body, and I can't find anything when I go to the hospital for examination.
3. Immune cells also age
People will age, this is the law of nature, as the immune cells in the human body will inevitably follow the laws of nature, immune cells will slowly become old with age, and the immune cells after aging will no longer be able to continue to work efficiently. So at what age do we get to the age of immune cells?
In 2019, Martin Luther University in Germany used NGS sequencing technology to study 346 blood samples from healthy and cancer patients, and obtained a collection of approximately 8.8 million TCR data. The research team found that:T cell diversity declines with age, even in healthy individuals.
The results of T cell analysis in healthy people, patients with solid tumors and patients with hematologic tumors showed that with the increase of age, the diversity of immune T cells not only aged significantly, but also gradually decreased. After the age of 40, the rate of aging and diversity reduction is exacerbated.
The blue line shows that the trend of T cell diversity in healthy people has increased since the age of 40.
As immune cells age, their ability to fight pathogens decreases, making the body more susceptible to damage from various germs, and the risk of cancer increases. Therefore, it is necessary to protect their immune cells in time, enhance their combat effectiveness, and delay the pace of aging.
Getting enough sleep, exercising, and eating a balanced diet can all boost your immunity. In addition to this, the reinfusion of immune cells can also rejuvenate immune cells.
A study published in PNAS (Proceedings of the National Academy of Sciences) states:By reinfusing fresh immune cells, it is possible to reverse the state of T-cell exhaustion and even ** chronic viral infection!It has opened up a new world for immune cells** infectious diseases and cancer.
Immune cell reinfusion is to collect human autoimmune cells, culture them in vitro or after modification, so that their number increases thousands of times, and stimulates vitality, and then infused back into the body to kill cancerous cells in the body and remove senescent cells. Activate and enhance the body's immunity, so as to effectively prevent cancer and delay aging, and improve the body's immunity.
Summary:Through a number of research conclusions, it is not difficult to see that the damage caused by the weakening of immune cells to the human body is obvious, if these immune cells are not "rescued" in time, it will be followed by frailty and aging. By supplementing immune cells, it can not only destroy the remaining senescent cells in the body, but also effectively improve the response level of the body's immune system, providing a new way to restore the body's health.