It should be noted that you can blow the air conditioner for a hot cold, and don't blow the air conditioner for a cold cold. Because it will lead to the closure of sweat glands in air-conditioned environment, affecting normal metabolism and secretion. Once the cold air breaks through the fragile defense line of the respiratory tract, the symptoms of colds such as cough, sneezing and runny nose are mild, that is, upper respiratory diseases.

This kind of cold is often called a cold, because the body can't adapt to the uneven temperature because it often goes in and out of the air-conditioned environment. The air-conditioned environment is closed, and the air circulation is poor. If one person catches a cold, it will infect others.

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In addition, people prefer to stay up late when the days are longer in summer, but in Chinese medicine, staying up late is easy to hurt the spirit and the spirit. Therefore, we should also ensure adequate and good sleep in summer. Once a person's sleep is not good, it will cause fatigue, which will lead to the decline of the body's resistance and immunity, which will make the virus take advantage of it and lead to the occurrence of colds.

Therefore, we advise you not to stay up late, whether for work or pleasure, you should go to bed before 12. Also, in order to prevent colds caused by decreased resistance, the intake of protein and vitamin C can be appropriately increased in summer.

Baidu encyclopedia-hot cold

People's Daily Online-Can I blow the air conditioner if I have a cold? Three principles of preventing colds in summer