According to the research of sports medicine experts, when people exercise, the blood flowing to muscles increases and the heart rate accelerates. When exercise stops, blood flow and heart rate will be relieved, but it will last for a long time. If you take a bath immediately, it will increase the blood flow to your skin and muscles. In this way, the remaining blood is not enough to supply other important organs, such as the heart and brain, which leads to heart disease. ?

Especially after strenuous exercise, in order to keep the body temperature constant, blood vessels on the skin surface will expand, sweat pores will become larger and sweat will increase, which is beneficial to heat dissipation. You can't take a shower at this time! If you take a cold bath, blood vessels will contract immediately because of sudden cold stimulation, blood circulation resistance will increase, heart burden will increase, body resistance will decrease, and people will easily get sick. If you take a hot bath immediately, it will continue to increase the blood flow to the skin, so that too much blood will flow into the muscles and skin, resulting in insufficient blood supply to the heart and brain. In this way, people will be dizzy, collapse and shock in severe cases, and it is easy to induce other chronic diseases. So after strenuous exercise, you must have a rest before taking a bath.