"Spring covers and autumn freezes" is a health-preserving proverb, which is people's health-preserving experience and has certain scientific truth. "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. Bacteria attack the body, which is easy to cause various respiratory diseases and infectious diseases in winter and spring.

proverb

"Covering in spring and freezing in autumn will not cause miscellaneous diseases" is a proverb for health care and disease prevention, which means to advise people not to take off their cotton-padded clothes in spring and not to wear too much when they are cold in autumn. Proper covering or freezing is good for their health.

People's body temperature is always relatively constant, generally around 37℃. If the body temperature is too high or too low, it will damage the physiological function of the human body.

Chunwu

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.

In spring, the temperature of nature is rising, but the indoor temperature can't keep up with the outdoor because of the thermal inertia of the house, resulting in the temperature difference between indoor and outdoor. This temperature difference reaches its maximum in the sunny afternoon of a day, often as high as 3-5℃ or even more. Especially when walking into a cool room from the warm sunshine, the elderly and patients must put on clothes and spring clothes to avoid catching cold and getting sick. Because the temperature rises (falls) fastest in spring (autumn) in China at the same latitude, the unique health-keeping proverb "Cover the spring and freeze the autumn" in China was born.

Autumn freezing

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.

Sneezing, runny nose and fever make people catch a cold. Therefore, it should be frozen again in autumn, and clothes should be added slowly.

When the temperature drops in autumn, the indoor temperature lags behind the outdoor nature due to the thermal inertia of the house, resulting in an opposite temperature difference. When the temperature rises from outdoor to indoor, it is natural to take off your clothes and freeze in autumn to prevent sweating from hurting your body.