"Spring cover" refers to spring, and the temperature has just warmed up. Don't take off your cotton-padded clothes too early. After wearing cotton-padded clothes for several months in winter, the regulation of body heat production and radiation is in a relatively balanced state with the environmental temperature in winter. From winter to early spring, it is warm and cold, and the temperature changes greatly. As the saying goes, "In spring, a child's face changes three times a day". Once the temperature drops, it will be difficult to adapt and the body's resistance will drop. Germs take advantage of this situation and easily cause various respiratory diseases and infectious diseases in winter and spring.
"Autumn freezing" means that the temperature is slightly cold in autumn, so don't add too many clothes too early. Proper cool stimulation is helpful to exercise cold tolerance. After a certain period of exercise in the environment with gradually decreasing temperature, it can promote the metabolism of the body, increase heat production and improve the adaptability to low temperature. By the same token, when the season begins to change, the temperature is still unstable and the summer heat has not subsided. Add too many clothes too early. Once the temperature rises, it is easy to catch a cold and catch a cold.
Winter goes and spring comes, which is a transitional stage from cold to hot. Although the weather is getting warmer, the climate often changes, sometimes warm and sometimes cold. Often after the sun comes out, it will be warm and sunny, and it will be cold when it is windy and rainy. Because people are used to wearing more clothes in winter, if they take off too much in spring, they will not adapt to climate change and get sick easily. Therefore, in the early spring, you should deliberately cover a little and slowly reduce your clothes.
Going to Qiu Lai in summer is a transitional stage from hot to cold. Although the weather is getting cold, there is a process of transformation. Some people wear a lot of clothes in autumn, and even put on cotton-padded clothes too early. This is not good, because putting on cotton-padded clothes too early will make the body unable to exercise cold air, reduce the cold-proof ability, and is not conducive to the adjustment of human functions. In this way, when the nose and trachea are attacked by cold air, the blood vessels inside can't resist and contract, which will reduce the blood flow and weaken the antibacterial ability and hide in the nose. Therefore, it should be frozen again in autumn, and clothes should be added slowly.
Of course, everything has a degree, and "freezing in spring and freezing in autumn" does not rule out changes according to the temperature. People's body temperature should always be around 37 degrees Celsius. On the one hand, we must rely on self-regulation, and at the same time, we must rely on increasing or decreasing clothes to help. If people still cover a lot or wear too thin in late spring and autumn, such a "spring and autumn freeze" will go too far.
Autumn freezing is not suitable for everyone, including the elderly, children, patients with cardiovascular and cerebrovascular diseases, patients with chronic kidney disease and patients with gastric and duodenal ulcers. Healthy people must also pay attention to moderate "freezing".