Why is it easy to catch a cold in winter?

As winter approaches and the weather gradually gets colder, many people will experience coughing, sneezing and fever in their daily lives. This situation is not accidental and happens to most people. So why are many people particularly susceptible to catching colds when winter comes? Today I will tell you about it. 1. Weather reasons

It is easy to catch a cold in winter. After all, it is closely related to the weather. The weather is very cold in winter. If a person's body resistance is relatively low, it is very easy to catch a cold in winter. situation. Moreover, in winter, the outside air is cold and dry and blows into the nose and forehead, which will cause blood vessels to constrict and cause irritation to the body. When the body is invaded by cold air, it is very easy to catch a cold. Nowadays, many young people are blindly pursuing good-looking clothes in winter. They wear less clothes and many parts are exposed to the outside. When the cold air blows, they are more likely to catch a cold. 2. The duration of sunshine is relatively short

Although there is sunshine in winter, the duration of sunshine is relatively short. The sun will only be warmer at noon. Although there is sunlight in the morning and evening, But they are not very warm, so when many people go to work in the morning, the sun has just risen, and when they get off work, the sun has already set, so the skin cannot be exposed to the sun for a long time. If the skin is not exposed to the sun for a long time, some nutrients in the body will be much less than in other seasons, so the body's immunity will gradually decrease. After the immunity is reduced, people will be prone to colds. 3. Viral infection

Colds are also popular in winter. There are many viruses in the air during the peak season. If a person's immune system is not strong enough, he or she will be very vulnerable to viruses. And in winter, most people stay at home, so there are more opportunities for people to come into contact. If someone in the crowd has been infected with the flu, the chance of infection will increase a lot. Therefore, everyone must pay attention to their personal hygiene in daily life. In winter, they should go out less and keep warm, and avoid going to crowded places.