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Hearing the news that someone organized swimming, Chu Jiaqiang had to say a word, although it is not as cold as in the morning and evening, the river is definitely a few degrees. At this temperature, I also ran to swim, and everyone who watched felt a burst of cold erosion.

"It's winter swimming, it's fashionable outside!" Li Quan said.

Strictly speaking, winter swimming refers to swimming in the natural water temperature of outdoor waters in winter. That is, the beginning of winter and the beginning of spring are supplemented by the standard of winter with a temperature of less than 10 degrees as the standard definition of winter swimming; Marked by water temperature, the national winter swimming can be divided into four levels.

That being said, but this is rural. In the eyes of the peasants. This kind of behavior is purely a joke about the body, and it is completely a waste of oneself, and only those ignorant children will do such a thing.

In the past, Chu Jiaqiang and others secretly tried it without telling their families, and at that time, smoke was still rising on the river, and a group of people still jumped down. However, Chu Jiaqiang remembered that he was not very cold when he went into the water, but came up and went to the stone to bask in the sun, and when a gust of wind came, goosebumps all over his body.

"Fooling around, do you make yourself sick?" Even the second uncle was a little unaccustomed to this behavior.

Zhou Furong explained with a smile: "Second uncle, you don't know, winter swimming is also beneficial, proper winter swimming is exercise." ”

He explained to his second uncle, second aunt and others that winter swimming has the benefits of enhancing people's cardiovascular function, and finally looked at Chu Jiaqiang: "If you don't believe it, ask this guy, he must know." ”

Chu Jiaqiang couldn't lie with his eyes open, and nodded to show that the truth was so. After the human body is stimulated by cold water, the blood circulation and metabolism of the whole body are greatly strengthened; The human skin is stimulated by cold water, the blood vessels of the skin are constricted sharply, and a large amount of blood is sucked into the internal organs and deep tissues, so that the blood vessels of the important organs of the internal organs are dilated; The body is resistant to cold. The blood vessels in the skin quickly dilate again, so that a large amount of blood flows from the internal organs to the surface of the body.

In this way, the blood vessels are exercised and the elasticity of the blood vessels is enhanced. Therefore, winter swimming is beneficial for the prevention and treatment of cardiovascular diseases, and among people who insist on winter swimming all year round, people with arteriosclerosis and high blood pressure are extremely rare.

However, there are too few people who can persevere. Let's not mention that everyone is busy with work nowadays and has no time to swim. Entering the water in winter alone is daunting.

"However, people with more serious heart disease, more severe hypertension, hepatitis, more severe nephritis, more serious stomach ulcers and other diseases should not do winter swimming. In the case of physical discomfort, winter swimming may aggravate the condition. Yang Lao added.

"Winter swimming is also particular, not blind. There is a saying in this that 'four tours and four non-tours'. That is, the sun does not swim in the yin, the snow does not swim in the wind, the rain does not swim in the fog, and the clear swim does not swim in the mix. Today's situation is quite suitable for winter swimming, and those who are not afraid of the cold may wish to challenge it. For this kind of brave activity, Yang Lao still advocated.

"You Yang does not swim Yin, this is the same as the last You Qing is not turbid, I can understand. It's a little warmer with sunshine, and I've heard people say the 'three baths' of winter swimming: cold water, air and sun. I don't know why the latter ones. "It's not like Tang Liye hasn't tried to swim in winter.

The benefits of "three baths" have been well known, especially in the current epidemic of "Ming disease", the rich minerals and trace elements in rivers, lakes and seas, the negative oxygen ions in the air, and the ultraviolet rays in sunbathing are very beneficial to fitness, oxygen supply, and prevention and treatment of osteoporosis. It is more resistant to cold than other winter sports on land.

"Although the sun is not visible in rainy and snowy weather, it purifies the air and reduces pollution, which is good for fitness. Foggy weather has a depressing feeling on people's spirits. The exhaust gases in the foggy air are not easy to dissipate, dust. Soot and pathogenic microorganisms can cause respiratory diseases. Chu Jiaqiang explained.

Since Yang Lao has advocated it, the other adults have no criticism. Chen Wu and the others were about to move, and sneaked out with a few people, knowing that they were going to participate in the so-called winter swimming.

There were already a lot of people gathered on the beach, and even banners were displayed. Jackton, these gringos must have participated, and people's awareness of sports and health is much higher, and they will come without the advocacy of Yang Lao and others.

The crabs basking in the sun on the beach were very unhappy, and these people drove them away as soon as they came, and the crabs with fat guts chased the children to attack.

The adults in the village are optimistic about their little ones one by one, and the children's bodies will be a little weaker and they will catch colds easily, so they will naturally not let them strip naked and mess around.

"You kid don't want to die? Hurry up and get dressed, don't me off. When a villager saw that his boy had secretly undressed and mixed in with the crowd, he immediately sank his face.

Lao Tzu was powerful, and the little guy had to put on his clothes stupidly, with a look of regret.

"Attention! Don't jump into the water, that's not good. Chu Jiaqiang reminded.

Sudden entry into the water is easy to induce the disease. Because the body suddenly enters the water under the temperature difference of the water temperature is too low, the stimulation of the water will appear more intense, and the body will not have time to prepare, and it is difficult to accept too strong stimulation, which is easy to lead to the occurrence of cardiovascular disease, resulting in life-threatening.

Of course, don't dive either. Gradually entering the water is the need for the body to adapt to objective conditions. Practice has proved that many people experience cramps, dizziness, and sudden increase in heart rate when swimming, which are related to sudden entry into the water. The human body enters from a static to a violent movement, and it needs an overturn in order to adapt the parts of the body to the needs of movement.

"Don't worry! We still know this bit of common sense, don't you come down to the old village together? Someone spoke. Many people know that Chu Jiaqiang broke the world record in the last swimming competition, which can be said to be not strong. As a swimming enthusiast, I still have a lot of respect for the strong.

Chu Jiaqiang shook his head, and secretly said I won't go crazy with you! It's not that he's afraid of the cold, it's that he doesn't like to join in the fun. He came here because the old village chief was afraid of accidents, so he asked him to come over as a nanny and deal with accidents.

There was a guy who was supposed to be in his first winter swim, and as soon as he stepped into the water, he immediately shrank back: "It's so cold!" ”

"It's a little funny! It's not icy yet, the last time I swam with us, the ice was still floating on it! That's zero, there's no comparison. One swimmer immediately laughed.

Not to mention the cold, there are ice cubes in the water that are even more dangerous, floating in the water and often making it difficult to see because of their transparency. In winter swimming, people often get scratched by the edge of the ice because of their fast swimming movements.

"Don't force it! If you feel that your body can't bear it, you come up. Chu Jiaqiang reminded again. I'm really afraid that those guys love face, and they just took off their clothes, and they are embarrassed to put them on immediately, and others will laugh at them.