It is not right to take a bath immediately after fitness or at night. Kinematics expert research shows that when people exercise, the blood flowing to muscles will increase and the heart rate will accelerate. Even if the exercise is stopped, the blood flow and heart rate remain at a high level for a period of time. If you take a hot bath immediately after exercise, it will increase the blood flow to the skin and muscles. In this way, the remaining blood is not enough to supply other important organs, such as the heart and brain, so someone who takes a bath immediately after sweating will feel dizzy or weak, and even cause heart problems in severe cases.
The best bathing time is half an hour after exercise. After the body cools down and returns to normal, choose water close to body temperature to clean the sweat stains on the skin surface. In the long run, the skin will become tender and better.
Stretching muscles properly while waiting for a bath after exercise is conducive to strength growth and muscle recovery, alleviating lactic acid accumulation and allowing the body to adjust as soon as possible. If time doesn't allow, at least you should wait until your body's sweat is dry before taking a shower.