"Spring covering" means that in spring, when the temperature is just getting warmer, don't take off your cotton-padded clothes too early, so that the heat generation and cooling regulation of your body are in a relatively balanced state with the environmental temperature in winter. Generally, the shortest period after beginning of spring is 10 days-15 days. This is because although beginning of spring represents the arrival of spring, the low temperature in winter will not rise immediately, and it will take at least 10-15 days. During this period, the temperature changed greatly. If you take off your cotton-padded clothes too early, your head, lower limbs, hands and throat will easily catch cold when the temperature changes, which will lead to diseases such as colds, tracheitis and arthritis.
For the spring sleeve, focus on the two ends of the "first foot". Because the weather is warm and cold in early spring, the temperature is low in the morning and evening, bacteria and viruses are active, and people are prone to get sick. Paying attention to "covering" the head, neck and feet can avoid diseases such as colds, tracheitis and arthritis. Cold from the bottom up, traditional health care advocates that spring clothes should be "thick under and thin on", because the blood circulation of the lower body is worse than that of the upper body, and it is easy to catch cold.