What are the causes of colds in different seasons?

A cold in one season shows that the body's immunity is poor, it is insensitive to temperature changes, and it is impossible to adjust the body to resist temperature changes in time. In addition, due to the change of temperature, when the season changes, the immunity or defense ability of the airway will decrease, which will lead to the invasion of pathogenic microorganisms such as bacteria and viruses.

There are two ways to avoid catching a cold when changing seasons. One is to improve resistance, which can be achieved through physical exercise or the application of drugs. The other is to avoid the contact of allergens and the influence of temperature changes on the human body. Wearing a mask is the best way to significantly reduce the incidence of colds and respiratory diseases.