Is there any scientific basis for this statement?

There is some truth in the view that "spring covers autumn". In spring, the temperature is high and low, and the temperature difference is relatively large. The sebaceous glands of the skin are closed for a period of time because of the cold, and the pores of the skin are expanded for a period of time because of the hot weather, which easily leads to an increase in blood pressure.

In addition, after a winter's warm clothing maintenance, the human body's own adjustment mechanism has already been integrated into today's stable balance. If you take off your clothes too early in winter, the specific immune system cannot create a new balance. In the event of "continuous rain", people often feel that they are "not as cold-resistant as autumn", especially the elderly, children, pregnant women and patients with chronic diseases, which are easy to catch a cold due to conflict and even cause allergic diseases, osteoarthritis, cardiovascular and cerebrovascular diseases.

In spring, clothes should be thick and thin. When cutting a coat, cut the coat first, and then cut the clothes. This is mainly because the spring cold is mostly released from the ground, so we should pay attention to keeping warm. Since ancient times, the saying "cold head and warm feet" has also said this truth.

Solar terms after the rain, although the temperature gets warmer, sometimes strong cold air will kill a comeback. At this time, the core of health care is to maintain the stomach and pay attention to spring. Generally, in the middle and late May of the Gregorian calendar, when the temperature exceeds 15℃ and it is relatively stable, you will not have a fever, catch a cold or get sick if you wear a little weaker at this time. Folklore put it bluntly: "Take off your cotton-padded clothes in February, pear blossoms in March" and "Send cotton-padded clothes after eating the Dragon Boat Festival dumplings" are all true.

Generally speaking, the temperature difference between day and night in spring is relatively large, and it is colder in the morning and evening. At this time, you can moderately "cover" for a while. On a sunny afternoon, the temperature is generally above 10℃, so you can moderately reduce your clothes. The temperature of 15℃ is a critical point. When it is below this temperature, it is best to "endure" the inconvenience caused by thick clothes again; When it exceeds this temperature, you can consider taking off some clothes and pants. The temperature is already very warm. If you cover it, you will always sweat and catch a cold when the wind blows.

Therefore, "spring covering" should be moderate, and the degree of "covering" should be based on feeling warm and sweating less. In spring, the qi and blood accumulated in the body will spread outward and bloom with the warmth of spring. If qi and blood are stored too much, it will turn into heat toxin, causing bleeding in human organs such as nostrils, gums, respiratory system and skin, as well as dizziness and other diseases. Therefore, the "spring sleeve" should be as moderate as possible. The key to spring covering lies in the back, abdomen and soles of the feet. Keeping your back warm can prevent infectious diseases and reduce the probability of fever and cold; Keeping the abdominal cavity warm is to maintain the stomach, spleen and intestines and prevent indigestion and diarrhea. Pay attention to both sides in spring and take good care of your neck and feet.