An overview of the body's "immunity".
1. What is immunity?
Immunity, as the name suggests, is the body's ability to resist disease, resist the invasion of foreign harmful bacteria and viruses, and deal with aging, damage, death, degeneration of its own cells, as well as recognize and process mutant cells and virus-infected cells in the body. Immunity is the body's physiological response to recognize and eliminate "aliens", which helps the body fight infections and prevent diseases. Immunity is the body's own defense mechanism, which is operated by the immune system. The body's immune system is mainly composed of immune organs such as mucous membranes, bone marrow, spleen, etc., and immune cells such as lymphocytes, neutrophils, etc. Immune molecules such as lysozyme, immunoglobulins, etc., work together to maintain our health.
2. Classification of immunity.
Immunity can be divided into non-specific immunity and specific immunity. Non-specific immunity is innate immunity, which is innate, and everyone has it, such as stomach acid, saliata, etc. Innate immunity does not target a specific virus, and there is no specificity. Acquired immunity, also known as specific immunity, is naturally acquired in the course of life after birth or passively obtained with artificial assistance, and needs to be continuously improved and matured after acquisition, and only works against a specific pathogen or foreign body.
3. A sound immune system.
A healthy immune system has three main functions: defense, stability and cleansing, and monitoring. The defense function refers to the protection of the body from damage, helping the body to eliminate foreign bacteria and viruses and avoid the occurrence of diseases;The stable cleansing function is to continuously remove aging and dead cells and keep the body purified and renewedThe monitoring function is to identify and remove cells with chromosomal aberrations or gene mutations in time to prevent the occurrence of cancerous tumors.
4. Is immunity equal to resistance?
In fact, immunity and resistance are not exactly the same. On the one hand, immunity can resist external threats such as harmful viruses and bacteria, and maintain the stability of the internal environment. On the other hand, immunity can also remove harmful cells and substances in the body, when a variety of bad molecules appear in the body, such as aging, damage, death, degeneration of cells, immunity can play a role in internal immune surveillance, and remove these harmful cellular substances from the body. Therefore, immunity includes not only resistance to pathogens such as bacteria, viruses, mycoplasma, etc., but also the ability to monitor internal immunity and eliminate senescent, mutated cells. Resistance is an important part of immunity, but it's not the whole story.
5. Is it better to have stronger immunity?
Everyone knows that immunity is poor, and when immunity is weak, it is easy to experience fatigue, repeated wind chills, wound infection, poor sleep, etc., so many people will think that the stronger the immunity, the better. Experts remind that the stronger the immunity does not mean the better the resistance, in daily life we will deal with various substances every day, our immune system can deal with it freely, but if the body's immune system is too strong, the wrong judgment of harmless substances in the outside world as harmful substances, it will be attacked, thereby triggering allergic reactions, and in severe cases, immune cells will even mistakenly attack their own normal, tissues and organs will cause autoimmune diseases, such as systemic lupus erythematosus. Similarly, people with weakened immunity are susceptible to pathogens, etc.
6. Can immunity be built quickly?
Immunity is the ability of the body's immune system to respond to exogenous microorganisms and exogenous antigens through immune cells such as lymphocytes and macrophages and immune molecules such as antibody cytokines, so as to ensure its own stability. When a person's body organs are functionally strong, the nutritional status is good, and the physical and mental pressure is small, the best resistance can be achieved, which is not something that can be achieved quickly. The function of various organs in the body is a nutritional state that needs to grow slowly, and the accumulated dietary habits, physical and mental stress, and long-term lifestyle habits also have a great impact on the usual habits, so immunity cannot be achieved quickly in the short term.
7. Health products cannot improve immunity.
Although some health supplements claim to improve immunity, scientists have not yet found any supplements that have been proven to increase immunity and reduce the risk of infection. For those with suppressed immune systems, there are currently a small number of medications that can help boost immunity.
Overall, maintaining a healthy immune system is essential for human health. People can boost their immunity by eating a balanced diet, exercising moderately, getting enough sleep, etc. At the same time, care should also be taken to avoid the abuse of antibiotics and other medications, which can cause unnecessary damage to the immune system.