Age is the most important factor affecting resistance. Young children are prone to illness because the immune system is not yet mature. Newborns can only fight infection through maternal immunoglobulin imported from umbilical cord blood during fetal period. This kind of immunoglobulin is metabolized gradually after birth, and its content is insufficient by 4 months. Until 6 months, the baby's own immunoglobulin gradually rose, and after 6 years old, it caught up with the level of adults.
In cellular immunity, the function of T lymphocytes in children under two years old is insufficient, and the bacteria wrapped in the membrane cannot be eliminated. Therefore, if infected with such bacteria (such as pneumococcus and Haemophilus influenzae), the course of disease will rapidly deteriorate into meningitis and septicemia. Therefore, it is not surprising that children fall behind in the face of pathogens in the environment.
A normal child will get 100 infectious diseases in the first10 years of his life, with an average of 6~ 10 infections a year.
2. Nutrition
The purpose of diet is to make the body get all kinds of nutrition, and nutrition is closely related to health, and diet and nutrition are closely related to health. Whether you are healthy or not is not natural luck, but can be achieved through the right diet. Children with anorexia and partial eclipse will lose their resistance. Studies have proved that infants lack iron and have poor immune function.
3. Living habits
Living habits, including diet, exercise and hygiene habits, will affect the aforementioned immune and nutritional factors. Exercise can promote blood circulation and enhance cardiopulmonary function. Children in modern life spend too much time at home and have insufficient activities. They should take their children out for fresh air. Aerobic exercise can greatly improve the bactericidal ability of white blood cells. Of course, the most important thing to remind is to develop good hygiene habits from an early age.
Extended data:
The main causes of children's health threats in China are the pollution caused by poor economic development level and infrastructure, and the pollution caused by industrialization and urbanization, that is, traditional environmental health problems and modern environmental health problems. These are the double health risks faced by children at present, and they need symptomatic treatment to actively resolve the health threats of children.
Protecting the environment from pollution should start with dolls. This is not only a social conscience, but also an adult's responsibility. Therefore, for these phenomena, it is necessary to take active measures to stop the economic development that destroys the environment and sacrifices health.
For example, in rural areas, on the one hand, we vigorously resist the entry of pollution projects, on the other hand, we will strengthen the development of clean energy, build and improve sewage facilities, shut down polluting enterprises in cities and towns, strengthen environmental law enforcement, severely punish wanton sewage discharge, protect the environmental safety of cities and towns, protect children's health, and give them a healthy and safe growth environment.