"As soon as I heard the children's voices, I knew I must have caught a cold again, alas." Run to the hospital at both ends every three days and take medicine and intravenous drip. I am very worried about my child's cold. Immune deficiency. A cold is more like the same living environment. Why do some children catch a cold easily, or even catch a cold repeatedly? But some children seldom catch a cold? Experts pointed out that the fundamental difference lies in immunity. Immunity is like an umbrella of the human body, which can help the body resist the invasion of germs and ensure the normal activities of the body. When the human immunity is reduced, various external harmful microorganisms, such as bacteria, viruses, mycoplasma, etc. It will easily invade the human body from the upper respiratory tract and cause a cold. In fact, before catching a cold, the body has gone through a process of fighting against pathogens. Cold symptoms are signals that the body's immunity is at a disadvantage in fighting against pathogens. Therefore, in the same environment, people with poor immunity are particularly prone to catch a cold. Enhance immunity and support a "protective umbrella" for children. Dr. Sun Guiju, a nutrition expert at Southeast University and a health college, analyzed: To keep children away from colds, we should start with improving the body's immunity and build a defense line for children to resist diseases. Although human immunity mostly depends on genetics, external interventions such as diet, sleep, exercise and stress will also have an impact on immunity. Introduction 1: Balanced nutrition pays attention to the absorption of nutrition. Nutrition is closely related to human immunity. Parents can help their children improve their immunity through reasonable diet and balanced nutrition. Pay attention to the daily diet, so that the food is diverse, fixed and quantitative, and reasonably arranged. Adequate fruits and vegetables, bean products, milk, eggs, fish, lean meat, bitter gourd, garlic, onions, etc. Are all foods that can enhance immunity. Excessive fat, refined sugar and alcohol will weaken the function of immune cells and inhibit the absorption of other nutrients. Children should be given some multivitamins in the season when they are easy to catch a cold. The human body's weapons against foreign invasion, such as interferon, and the number and vitality of various immune cells are closely related to vitamins. Parents can choose professional vitamins suitable for their children, such as multivitamins for children who grow up happily in Yangshengtang. At present, there are some good Chinese medicine methods to improve immunity, such as Zheng's pediatric Chinese medicine pedicure. In addition, some drugs with antiviral and fire-clearing effects, such as Radix Isatidis, should be used appropriately. Raiders 2: Have a good sleep and improve the immune index. Sleep is also closely related to human immunity. Immunologists found through the "self-sleep" experiment that a good sleep can significantly increase the number of two kinds of lymphocytes in the body. The research of medical experts also shows that during sleep, the human body will produce a sleep factor called muramic acid, which can promote the increase of white blood cells, activate macrophages, and enhance the detoxification function of the liver, thus eliminating invading bacteria and viruses. Parents should help their children form the habit of going to bed early and getting up early. Drink a glass of milk and take 2 vitamins before going to bed. Milk can help sleep, and vitamins taken with milk can help the nutrients in milk be fully absorbed. Professor Hong Zhaoguang, a famous cardiovascular expert, gave advice on drinking milk in the book "Boarding the Health Express": drink milk before going to bed, and supplement a vitamin C and vitamin B complex. The child is not only tall and heavy, but also has strong resistance. The cold, tonsillitis, pneumonia and fever are all fine and very healthy. Raiders 3: Jumping enhances the physical and material living standards, but children exercise less, ride more, walk less, have more indoor activities, and have less outdoor activities. There are more and more chubby children, bean sprouts and nearsighted children, and their physical fitness has also declined. Proper exercise can effectively enhance children's immunity.