During exercise, the body generates heat. In order to maintain the stability of body temperature, the body needs to sweat to dissipate heat. Exercise makes the body generate more than ten times as much heat as when it is quiet, which naturally strengthens the heat dissipation. In order to increase heat dissipation, the blood vessels in the panel will relax, the blood flow speed will increase, and the blood flow in the panel will also increase, resulting in a large increase in sweating.