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 your health. 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. The thermal effect will further expand the skin blood vessels, sweat more, and reduce blood pressure, which is also bad for health. So it's best to have a rest and take a bath with warm water after fitness.
Extended data:
Things not to do immediately after exercise.
First, don't sit down and rest immediately after exercise.
Whether participating in aerobic exercise or anaerobic exercise, physical fatigue and muscle soreness will occur after fitness. For people who exercise regularly, muscles can get enough oxygen during exercise, and carbohydrates decompose less lactic acid, so muscles will not have obvious pain.
For people who don't exercise often, the pain after exercise will be more obvious, so don't sit down and rest at this moment, which will affect blood circulation, lead to excessive lactic acid secretion, and more easily aggravate muscle fatigue. After strenuous exercise, you should walk slowly 10 minutes and take more deep breaths, which will help your muscles to eliminate fatigue as soon as possible.
Second, don't take a bath immediately after exercise.
After exercise and fitness, many people will get used to taking a hot bath immediately. In fact, this practice is not scientific. During exercise, the speed of blood return in the body will be accelerated, and the heartbeat will also be accelerated with exercise. If you take a hot bath immediately, the blood circulation between muscles and skin will continue to accelerate, resulting in insufficient blood supply to other organs of the body, hypoxia in the brain, and even a heart attack in severe cases.
Third, don't drink cold drinks immediately after exercise.
When exercising, the body sweats a lot. If you don't pay attention to proper drinking water during exercise, many people will be thirsty. If you drink a lot of cold drinks at this time, it is likely that the throat, esophagus and other organs contract sharply when they are cold, and stomach cramps lead to abdominal pain.
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