We often see some ladies put on tights, tights and leg socks when doing aerobics and running, and then shrink their whole body size, thinking that this is the only way to lose weight. As we all know, during exercise, due to the increase of blood volume and volume load, the heart must work twice to overcome the vascular resistance caused by extrusion and pump more blood to the limbs of the whole body to ensure the demand for blood oxygen during exercise. Due to the compression of the corset, the cardiopulmonary function is affected, and symptoms such as chest tightness, chest pain, dyspnea, dizziness and nausea appear. It is easy to happen, and severe cases will faint to the ground. It can be seen that wearing a corset can not only lose weight, but also easily lead to sudden illness. Therefore, ladies should not blindly catch up with some so-called "fashions" and harm their health.