Although, people may be attacked by influenza virus all the year round. But winter is a peak season. In winter, the weather is cold, the human body's resistance is weakened, and it is easy to catch a cold. Besides, people spend most of their time indoors and the windows are often closed.
As a result, the air is not circulating and the virus spreads more easily. In addition, the winter climate is dry, and the resistance of human respiratory system decreases, which is easy to cause or aggravate respiratory diseases.
In fact, as long as you exercise properly, pay attention to a reasonable diet and enhance your body's resistance, the flu can be completely prevented. The following are ways to enhance immunity and resist influenza virus.
dietotherapy
Drinking plenty of water can keep the mucous membrane of oral cavity and nasal cavity moist, which can effectively remove bacteria and viruses.
Eat more foods rich in protein.
The main substance of human immune system is immunoglobulin. When the human body lacks protein, the number of lymphocytes in immune cells will be greatly reduced, and the synthesis of immune substances is insufficient, resulting in a serious decline in immune function. Protein mainly comes from animal foods, such as beef, skinless chicken breast, egg white, milk, shrimp and so on.
Eat more foods containing iron.
Studies on foods rich in iron have found that people with iron deficiency have low immunity. When the iron content in the human body is insufficient, the content of T cells, which play a controlling and regulating role in the immune system, will decrease, which will lead to the inability of the immune system to operate effectively.
In addition, iron is an important component of hemoglobin. Increasing iron intake can promote hemoglobin synthesis, promote peripheral circulation and avoid cold hands and feet.
Because feet are sensitive to temperature, if feet catch cold, it will reflexively cause vasoconstriction of nasal mucosa, making people vulnerable to influenza virus. Iron-rich foods mainly include animal liver, meat, pig blood, duck blood, eggs, dark vegetables and so on.