After exercise, the body sweats, the skin blood vessels dilate obviously, the skin blood flow increases, and the blood flow back to the heart decreases. If you take a bath with cold water, the skin blood vessels will contract sharply, the blood volume will suddenly increase, and the blood pressure will rise, which is not good for patients with cardiovascular diseases such as hypertension. Moreover, after exercise, the pores are loose and sweaty, and it is easy to catch a cold when taking a cold bath.

Take a bath with hot water immediately after exercise, and the thermal effect will further expand the skin blood vessels, sweat more, and reduce blood pressure, which is not good for people with physical weakness and low blood pressure. Therefore, it is not advisable to take a bath immediately after exercise. Let the body slowly cool down, wait until the heart rate and breathing return to normal, and then take a warm bath after sweating basically stops.

If you enter the air-conditioned room immediately after sweating, or the ambient temperature changes greatly, resulting in a sudden drop in body temperature, you should wipe the sweat immediately and avoid direct blowing of cold air to avoid sweat gland occlusion. It is best to wipe with a dry towel or a warm towel. At this time, the pores and capillaries of the skin can be quickly opened, which is conducive to better heat dissipation, but the human body will feel cool and comfortable.

If you wipe it with a cold towel, the skin will be stimulated by cold, which will lead to the closure of pores and the contraction of capillaries, and the accumulated heat in the body will not be emitted, which will eventually make people feel annoyed.

Extended data

Exercise is not sweating as much as possible.

Most people think that the more you sweat during exercise, the better the exercise effect. Actually, it is not. Sweat glands in human body can be divided into active and conservative types, which are closely related to heredity and secretion.

For people who don't like sweating, you can't force your body. Especially in spring, the climate after beginning of spring is windy. After sweating, many people are eager to take off their clothes, but at this time, the expansion of pores will make the cool and humid air take advantage of it. Traditional Chinese medicine often says that when wind evil invades the human body and invades the upper jiao lung, the human body is most prone to pneumonia and other diseases.

You should wait until you have a little fever after exercise before taking off your clothes. After sweating, give your body a buffer time before taking a shower.

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