Why do children often catch colds?

Children often catch colds because their parents do not take good care of them. Children's body resistance is very fragile, especially when the weather changes quickly, children are very likely to catch a cold and fever. We should remind children to add appropriate clothes, and pay attention to hygiene and strengthen physical exercise to avoid viral infection and improve their body resistance.

The sufficiency and balance of nutrients in the human body are related to the strength of the body's immune system, and also have a certain correlation with certain infectious diseases. According to existing nutritional research results, adequate nutrient supplementation of the human body will greatly enhance the body's immunity to diseases and play a role in preventing atypical pneumonia. So what is immunity? Simply put, immunity is the body's resistance to various diseases, and the resistance comes from the body's immune system, which is composed of immune organs such as the thymus, bone marrow, spleen, lymphoid tissue, and immune cells such as macrophages, natural killer cells, and lymphocytes.

A healthy immune system has three major functions, the first of which is defense. Strong immunity can help the body eliminate foreign bacteria and viruses and avoid diseases, and has the defensive ability to protect the body from damage; the second is stabilizing function. Good immune function can help the body repair or eliminate metabolic, damaged or aged dead tissue cells in the human body, and maintain the internal environment of the body's metabolism in a stable state at all times; the third is the monitoring function. Strong immunity can help the body kill and eliminate abnormal mutated cells.

Vitamin C forms the second step of the "balanced nutrition and immunity trilogy", helping to kill viruses that enter the human body. Because it can interfere with the virus's attack on white blood cells, activate white blood cells throughout the body, enhance the white blood cells' ability to phagocytize viruses, kill germs, thereby enhancing the body's immunity and protecting the body from virus attack. The vitamin C content in the white blood cells of cold patients is significantly reduced.

In addition to trace elements, there is also taurine. Taurine is an amino acid that promotes the growth and reproduction of lymphocytes of the immune system. In addition, it can clear away heat, relieve pain, and alleviate the symptoms of fever caused by the body's own automatic regulatory defense system activated to resist viruses. This is the third step of the "Balanced Nutrition and Immunity Trilogy". When the human body is severely damaged, taurine can also play a role in clearing heat and reducing fever, thereby enhancing the body's resistance. In other words, if people, especially children, can supplement a variety of nutrients that are beneficial to improving human immunity in a balanced manner and build a nutritional-immune protection barrier in the body, they can more effectively protect the body from viruses.

As soon as a child has a fever, it is a taboo in medical treatment to use antipyretics immediately regardless of the reason. Fever is not all bad. First of all, fever is a signal that the child is sick. Secondly, fever is beneficial to mobilizing the child's immune function, which is beneficial to killing and eliminating bacteria and viruses, and promoting recovery from the disease. This is because after a fever occurs, the heart rate increases, and the heart rate increases by about 10-20 times for every degree Celsius increase in body temperature. The heartbeat speeds up, blood circulation is vigorous, and the amount of blood flowing to the inflamed area increases. On the one hand, this can dilute the bacteria and the toxins they produce. On the other hand, the white blood cell count also increases. In addition to directly destroying and engulfing bacteria and viruses, it can also produce an endogenous heat to produce antibodies that have the ability to kill bacteria or viruses, thereby promoting improvement of the disease. At the same time, the iron in the blood is temporarily stored in the liver. Bacteria need iron more than humans. Once iron is deficient, bacteria will find it difficult to grow, thus achieving the purpose of eliminating bacteria.

If you use too many antipyretics as soon as you have a fever, not only will the above series of changes be difficult to achieve, but it may also mask the condition and delay treatment. In addition, the symptoms become atypical after the fever subsides, which also makes diagnosis difficult. Therefore, when you have a fever, do not rush to reduce it before the diagnosis is confirmed. Only choose the corresponding antipyretic analgesic when one of the following situations occurs: the fever is too high (above 39 degrees), especially in children with high fever convulsions. Although the fever is not too high, there are obvious headaches, insomnia, impaired consciousness, which affect the child's rest; due to persistent fever, the heart and lung function has been endangered, or the high fever cannot be tolerated, etc., antipyretic analgesics may be used as appropriate. After a fever is confirmed, do not simply reduce the fever, and do not use too many medications to reduce the fever.

Generally speaking, if the body temperature is below 38 degrees, there is no need to take antipyretics. Just drink plenty of water (small amounts and multiple times) and rest in bed. If the fever is above 38.5 degrees, you can use a wool patch soaked in cold water to place on the forehead, armpits, thighs and other parts of the child to cool down. Ice packs will be more effective. In case of high fever, give the child an appropriate dose of antipyretic medicine under the guidance of a doctor. Don't be in a hurry and use medicine indiscriminately.