What does it mean to cover spring and freeze autumn?

Take your time, undress in spring and dress in autumn-don't react too quickly to obvious changes.

"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.

"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 an environment with gradually decreasing temperature, it can promote the body's material metabolism, increase heat production and improve its adaptability to low temperature. By the same token, when the seasons begin 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.

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, it depends on self-regulation, and at the same time, it depends on adding and subtracting clothes to help. If people still cover a lot or wear too thin at the end of spring and autumn, such a "spring and autumn freeze" will go too far. March and 165438+ 10 are the high incidence seasons of respiratory diseases. On the one hand, the temperature changes greatly, which also has a lot to do with improper clothing adjustment. There is no difference between the upper body and the lower body. The key is whether the whole body is coordinated.

Covering the cold in spring is a popular health care proverb in China, but we often hear different or even opposite opinions. What are its applicable conditions and conditions? New understanding of "spring sleeve"

About seven years ago, the author published a new understanding of spring covering, discussing why autumn should be frozen and spring should be covered. This is a transitional season with changeable temperature. The main contents are as follows:

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) at the same latitude in China, a special health-keeping proverb "Cover the spring and freeze the autumn" was born in China.

From the regional perspective, the importance of spring covering (autumn freezing) in the north of China is far greater than that in the south. Because the temperature speed in spring and autumn in China changes rapidly with the decrease of latitude. Generally speaking, South China has never heard of the saying that spring covers autumn and freezing. New understanding of "autumn freezing"

In the same way, the temperature in autumn is in a declining stage, and the indoor temperature lags behind the outdoor nature because of the thermal inertia of the house, resulting in an opposite temperature difference. Walking into the room from the outside, the temperature rises, so it is natural to take off your clothes and freeze in autumn to prevent sweating from hurting your body.

But the difference is that the temperature difference between cold outside and warm inside in autumn mainly occurs at night rather than during the day. The author has been to Taihang Mountain in early September this year. At that time, the cold air in the north had just arrived, and the temperature was low on sunny nights. In addition, in the deep valley terrain, colder air flows down the slopes on both sides, which makes the temperature difference bigger. At that time, the temperature difference between indoor and outdoor was estimated to be around 4-5℃, so I felt warm and harmonious as soon as I entered the small room with the windows closed. Therefore, northerners have the habit of taking off their coats before entering the house in winter, because the temperature difference between indoor and outdoor in the north can often reach 20-30℃, or even greater.

In spring and autumn, the indoor and outdoor temperature difference of various houses is the largest, such as bungalows, basements or the first floor without basements, because the earth is a huge heat storage (cold) device. In spring and summer, the bedroom floor is a strong "cold air film", and it becomes a "warm air film" in autumn and winter. The heat storage in the living room wall is very small. Pu Songling, a writer of Liao Zhai in Qing Dynasty, was born in a poor family and lived in a dark house under the shade of cypress. From his poem "The Chamber of Secrets" written in 17 10, we can realize that he came back from the outdoors at noon and entered a cold cave, so he needed to put on his clothes in spring. "Being in a hurry" is the right thing to do.

However, the author believes that the above understanding of "cover" and "freeze" is not the original intention of ancient health experts, although an explanation of "cover in spring and freeze in autumn" has been found scientifically.

Because, as mentioned earlier, China is a country with four distinct seasons, and the change of seasons has a great influence on health care. Huangdi Neijing pointed out, "Therefore, the wise man's health must be suitable for cold and summer, …" and said, "If you follow it, you should not be harsh, and if you follow it, you will be born in disaster." In ancient books on health care in China, the four seasons are regarded as the highest criterion of health care. So how to adapt to the four seasons of cold and heat?

The ancients advocated that "the cold should be served first, and the heat should be solved first" (Jin, Ge Hong); "Clothes increase or decrease, depending on the climate, the number of days changes" (Qing, Cao Tingdong); Among them, Li Zhiyan, a native of A Jin, is the most easy to understand. The ancients also emphasized not to think that "it is only slightly hot and slightly cold but very strong."

It can be seen that the ancients did not generally say that it was "frozen" when it was cold and "covered" when it was hot. Therefore, from the ancient Huangdi Neijing to the Qing Dynasty, there is no such reference as "covering spring and cold autumn" in China's main health books. According to the author's preliminary research, this formulation is generally based on the fact that the clothes of the ancients in the Spring and Autumn Period cannot be expedited and reduced. For example, Qiu Chuji, a famous health care expert in Yuan Dynasty, wrote in On Taking Health Care that in spring, "The weather is cold and warm, so we can't go to cotton-padded clothes. ..... Get ready for clothes when it's warm, and it'll be easy. Lose a weight and don't be violent. " When it's cold in autumn, add cotton-padded clothes and gradually thicken them. You can't eat more than one meal at a time, but you don't catch a cold. "Sun Simiao, a master of health preservation in the Tang Dynasty, also said this a long time ago.

But these words just prove that they are aimed at indoor health preservation with relatively stable temperature and are a health preservation method under specific circumstances. Otherwise, nature is cold and hot, and when it is cold and hot, can you go out and enter the door, and you can only add and subtract a thin coat without worrying? For another example, as the saying goes, "You can't send a cotton-padded coat until you eat the Dragon Boat Festival Zongzi", but if you go out in the solar calendar in June and still wear a cotton-padded coat, isn't he a freak? Autumn is the opposite, but the reason is the same. In other words, the proverb "covering spring and freezing autumn" has not been mentioned in many modern health books and periodicals, but there is an abnormality in newspapers that "covering spring and freezing autumn is not suitable for everyone"; It should be "tailored"; There is even a saying that "spring covers the autumn and freezes, and there is no disease to find a doctor".

The author believes that the ancient methods of health preservation and disease prevention are mainly aimed at middle-aged and elderly people and patients. However, their physical adjustment ability to adapt to the external temperature changes is weak, while the weather in China changes dramatically. Therefore, it is definitely inappropriate to unconditionally mention "spring covers autumn and freezing". Moreover, more importantly, "covering the spring and cold autumn" is only an indoor cooling and warmth preservation method under certain conditions, which is far less memorable than the unconditional "get rid of it" of the ancients. And this is the original intention of the ancients to keep warm and keep fit.

Finally, it should be pointed out that the author also realized a more general understanding, that is, due to China's special climate conditions, cold and warm air activities are active almost all year round, and the temperature difference between indoor and outdoor may change dramatically at any time. Therefore, cold and warm health care is not limited to spring and autumn: it should be a health care event that the elderly should pay attention to for half a year or even the whole year according to the actual temperature change.

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Winter goes and spring comes, and everything recovers. As the temperature gets warmer, people will take off their winter clothes and put on their spring clothes. At this time, young people who love beauty can't wait to put on skirts and suits and shirts. But older middle-aged and elderly people should wear more clothes to keep warm. This is what people often say, "spring covers the autumn." Then, spring came and the weather became warmer. Why do people want to "spring cover"?

As we all know, spring and autumn are out of season, but they are very different. In China, March-May is spring, and September-165438+1October is autumn. According to the statistics of climate data for many years, the average maximum temperature in spring is higher than that in autumn, while the average minimum temperature in spring is lower than that in autumn. According to the climatic data of Beijing, the average maximum temperature is 18.9 с in spring and 18.2 с in autumn, which is 0.7 с higher than that in autumn. The average minimum temperature in spring is 6. 1 с, and that in autumn is 6.7 с, which is 0.6 с lower than that in autumn. This shows that although the temperature is higher during the day in spring, it is still lower in the morning and one night. The temperature in the house is conservative. Spring is a recovery period, and the temperature in the house is not as good as that outside, so it feels very hot outside, and it feels very cold as soon as you enter the room. On the other hand, autumn is a cool season. Although the temperature outside has dropped, the room is warm.

Therefore, if you don't pay attention to keep warm in spring, you will take off your clothes in a hurry when it is hot, and you will not be able to fully adapt to the outside temperature sooner or later. If you don't pay attention, you will catch a cold and have a fever. Also, although the weather warms up in spring, the number of cold air activities is still more than that in autumn, and there are often cold waves invading, which often leads to cold weather in late spring and people can easily adapt. Therefore, it is best not to lose clothes easily in spring, pay more attention to keep warm and cover more. Doing well in spring health care can be beneficial to people's physical and mental health.