As the saying goes, it is good to cover the spring and freeze the autumn. Is there any scientific basis for this statement?

Covering in spring and freezing in autumn is the health care experience accumulated by our ancestors through many generations. Even today when medical technology is so advanced, it still has certain health preserving value, and the days are very worthy of our study and attention. Why? Because Chinese medicine believes that "Yang should be raised in spring and summer, and Yin should be raised in autumn and winter", spring is the season when Yang is born and Yin disappears, and the temperature is getting warmer, so it is necessary to raise Yang; Autumn is the season when yin generates and yang disappears, so it is necessary to nourish yin.

Beginning of spring is the first of the 24 solar terms in a year. Although the solar term has arrived, the temperature is very low and the climate is changeable. If you are in a hurry to change your spring clothes, you will easily catch a cold and have joint pain. We can change the Spring Festival until the temperature stabilizes. Besides, some people are eager to change their autumn clothes as soon as they arrive in beginning of autumn. At this time, the weather temperature is still relatively high. If they wear it today and take it off tomorrow, they are more likely to get sick. They have to wait until the weather is really cold before wearing autumn clothes, adapting to the surrounding environment, and the disease rate is greatly reduced. That's what it means.

First of all, spring cover means that the temperature in spring has changed from cold winter to spring. At this time, the temperature on the whole earth is getting warmer and everything is recovering, but at this time, the temperature is not stable. If the weather is a little warmer, you will wear less. Sudden cooling will lead to cold and dampness invading people's bodies from the outside. If the metabolic capacity of water in the body is insufficient, it will make cold and moisture accumulate in the body, making people easy to get sick. So you must keep warm when you wear clothes in spring. Enough is enough to increase or decrease clothes, and try to prepare some coats around you to prevent the weather from suddenly getting cold.

Secondly, autumn freezing is mainly because summer has just passed and the weather has cooled slightly. At this time, don't rush to add clothes. Be careful that the temperature suddenly warms up, so that the heat in the body can't dissipate and the effect of "nourishing yin" can't be achieved. Therefore, it is necessary to exercise properly in autumn to increase immunity. Autumn is the best season to nourish the lungs, which can effectively prevent respiratory diseases.

It is a summary of predecessors' experience to cover spring and freeze autumn. In real life, we still have to stop according to our own situation. Don't be extreme. It is better to add or subtract clothes to make yourself comfortable. We can't copy mechanically and harm our health.