First of all, from the perspective of personal health, keeping the lower body warm is the basis of human health, because in winter, cold usually starts from the soles of the feet. If the warmth of the lower body is not comprehensive, the feet, legs and joints will be attacked by cold air, which will do great harm to the human body itself, such as arthritis, which is caused by insufficient warmth of the lower body. After this kind of injury, it is basically impossible to completely cure it. In the long run, it will become what people call "senile", especially for women, if the lower body is in a cold state for a long time, it is easy to suffer from palace cold, thus aggravating dysmenorrhea.
Secondly, from the perspective of human body structure, the blood supply of human body is mainly from the heart, which is located in the upper body, so the blood in the upper body is the main body, and the heat of blood is relatively high. When the blood flows to the lower body, most of the heat has been consumed in the supply process, so when the blood reaches the lower body, especially the feet, the stored heat is relatively small, and the lower body is more likely to feel cold, thus affecting the blood circulation of the human body.
Generally speaking, for the sake of our health, we must pay attention to the warmth of the lower body. For the sake of beauty, we can occasionally show off our legs, but at the same time, we still protect our bodies and keep them healthy.