The moire analysis of the respiratory physician in this hospital said that wearing a mask can really prevent influenza, but wearing a mask for a long time is more likely to catch a cold.

For normal people, the mucous membrane of human respiratory tract is covered with microvessels. After the nose inhales cold air, the mucosa of the nasopharynx and trachea heats and humidifies the cold air, and the cold air approaches the body temperature when it enters the lungs. This "process" can exercise the nasal cavity and respiratory tract and improve the body's ability to keep out the cold. If you wear a mask for a long time, the human body lacks exercise, and it is easier to catch a cold with a slight cold.

Extended data:

Taboos for wearing masks:

Error 1: Keep wearing a mask.

It is wrong to wear a mask for two or three days. Because after wearing a mask for a period of time, the outside will be covered by pollutants such as dust and bacteria in the air, while the inside will be covered by water vapor and saliva with bacteria and viruses. If the mask is not cleaned or inverted for several days, it is easy to cause secondary pollution, which is not good for human health.

The correct way: it is best to prepare more masks and change them every day.

Mistake 2: Put the mask in the bag after wearing it.

After taking off the mask, many people like to put the mask in their pockets or bags, but they don't know that money is often put in their pockets and handbags, which can easily lead to the pollution of the mask by pathogenic microorganisms, but it is easy to get sick when wearing it again.

The correct way: prepare a clean plastic bag, fold the inside of the mask in half after each wear, put it in a plastic bag, and then put it in a pocket or handbag.

Mistake 3: Wear a mask for a long time.

The nose can adjust the inhaled air close to the body temperature, which is a natural regulation mechanism of the human body and can be enhanced through exercise, thus improving people's cold tolerance. If you wear a mask for a long time, this physiological function will lose the opportunity to exercise, resulting in a decline in the warmth retention ability of the nasal mucosa. Cold air will stimulate the nasal mucosa, and a little carelessness will cause a cold.

Correct method: Do not wear it for more than 30 minutes at a time. You can take it off and get some air before you put it on. Usually 5 to 6 hours is the upper limit. You don't need to wear a mask in good visibility and fresh air.

Mistake 4: Wear professional masks blindly.

Different masks have different anti-haze effects. Wearing professional protective masks requires training. If you don't know it, you'd better not wear it casually. Because these masks are very thick, it is easy for patients to have difficulty breathing and feel dizzy due to lack of oxygen.

People's Network News Wearing a mask for a long time can make people sick.

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