With the growth of age, physical function will gradually decline, and people's resistance and immunity will decline. The environmental pollution we are talking about includes air, noise and water pollution. The more serious the pollution, the greater the harm to the body, which will reduce the resistance and make normal cells mutate.

2. Mental stress and virus infection

Being in a state of high stress for a long time will affect endocrine and reduce resistance. Only by releasing stress and regulating emotions can the immune system be improved. In addition, when infected by virus and suffering from certain diseases, it will also make immunity low and even bring irreversible harm to immunity. Some men are busy with work and always eat a full meal with an empty stomach, which will do harm to the gastrointestinal tract, affect the absorption of nutrients and be detrimental to the improvement of the immune system.

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It is necessary to develop good living habits, keep regular work and rest, go to bed early and get up early. Avoid physical overwork, ensure adequate sleep, take nutrition for the body in a balanced way, do a good job of matching meat and vegetables, eliminate bad emotions in time, and face everything with a good attitude. Eat more foods rich in dietary fiber to stimulate defecation.

What are the manifestations of low immunity?

1, there will be gastrointestinal problems.

When immunity is low, the stomach and intestines become very weak. Eating a little contaminated food can lead to diarrhea and abdominal pain. When the pressure of work or study is too great, it will make the spirit too nervous and affect the immune system. Being under high pressure for a long time will slow down the immune system.

2, the wound is easy to be infected.

Under normal circumstances, fingers can recover after being cut or bitten by mosquitoes for several hours. People with low immunity will take a long time to recover even if there is a small wound, and it will be accompanied by edema, redness and pus. A little work will make you very tired, even if you have enough rest, you can't relieve it. Besides, when it's a little colder, I've always caught a cold.

3. Soaring weight

People with low immunity will suddenly gain weight in a short time, which will induce obesity, have a certain impact on the brain and heart, and also cause hormone imbalance and inflammation. In addition, people with low immunity always have dry noses and cannot excrete toxins through mucus secreted by the nasal cavity.