Just after exercise, the human body is still in a state of strong metabolism, increased heat production, and dilated blood vessels in the skin. At this time, if you take a cold shower immediately, the skin will be stimulated by the cold water, which will cause the blood vessels in the skin to contract through nerve reflexes. As a result, sweating and heat dissipation can be hindered, which will make it difficult to dissipate heat and increase body temperature. At the same time, the reduction in skin blood flow causes a sudden increase in blood return to the heart, which increases the burden on the heart.
In addition, when the body suddenly enters a cold environment from a hot environment and has no time to adapt, it is often easy to catch a cold or cause gastrointestinal cramps. After exercise, muscle fatigue and tension increase, and cold stimulation at this time may also cause cramps. After sweating during summer exercises, you should drink some boiled salt water, rest for about an hour, do some preparatory activities, and then take a cold bath. If conditions permit, it is best to take a warm bath.
The saying that taking a cold bath will return merit depends on when you take a bath. If you are going to participate in a performance or take a dance exam, take a bath before then to make your muscles easier Relaxation has no strength. If you have no tasks after dance class, you can take a shower. It is best not to take a cold shower! ! !