In 2023, the badminton and table tennis competition for staff in Tianfu New District of Sichuan opened.

  Zhongxin. com Sichuan News December 16th (Zhu Huan) On the 15th, sponsored by Chengdu Federation of Trade Unions, Sichuan Tianfu New District Trade Union Office, the Communist Youth League Working Committee and the Women’s Working Committee jointly hosted the "Happiness into Work" and the 2023 Sichuan Tianfu New District Staff Badminton and Table Tennis Competition kicked off at Xinglong Lake.

  This competition is divided into badminton and table tennis. Badminton includes middle-aged/youth mixed doubles and men’s doubles, with more than 160 players competing with badminton. In the table tennis competition, there were men’s singles and women’s singles in the middle-aged group/youth group, and more than 130 players made fierce "ping" killings. After more than 300 fierce competitions a day, all the champions and runners-up in each category of each project were produced.

The scene of the game. Photo courtesy of Chengdu Federation of Trade Unions
The scene of the game. Photo courtesy of Chengdu Federation of Trade Unions

  On the badminton court, the contestants are quick-footed, left-handed and right-handed, clean and neat. On the court, rackets are flying and silver balls are flying, and the teaching staff are agile, energetic and skillful.

  On the table tennis field, the players are energetic and skilled, and wonderful scenes such as straight shot, horizontal shot, spike, spin ball and curve ball frequently appear, and their styles of play are different, which won applause from the audience.

  From time to time, warm cheers came from the stadium, and the players sweated and worked hard. Participants have said that they will continue to strengthen physical exercise and bring it into their future work with strong physique and full spirit.

The scene of the game. Photo courtesy of Chengdu Federation of Trade Unions
The scene of the game. Photo courtesy of Chengdu Federation of Trade Unions

  "I am a member of the Badminton Association in Tianfu New District. I am usually a deep fan of badminton. I will participate in the annual competition in the new district. In the process, I also made some like-minded friends. I will participate in this competition with full horsepower, and I hope we can get a good ranking. " Chen Wei, head of the engineering consulting department of Chengdu Tiantou Group Planning Institute, said before the game.

  "enough! I will come to participate in the next competition! " Wei Sixun, an employee of Mengsheng Electronics, said excitedly: "I personally love badminton matches very much. I usually play a dozen with my colleagues in my company. Today, I am very happy to participate with people from different units and enterprises in the new district. I am very confident in myself and hope to get a good ranking."

  After fierce competition, the first, second and third prizes of the event were finally selected. This badminton competition not only showed the level, style and friendship, but also showed the cohesion and enthusiasm of workers in different fields in the new district.

  It is reported that this activity is a measure for Tianfu New District to deeply implement the "345" work idea of the 15th Congress of the Sichuan Provincial Trade Union. In the next step, Tianfu New District will continue to make precise efforts in the field of "what the party and government need, what the workers are in urgent need, and what the trade union can do", and work around the center of the Party Working Committee of the new district to promote high-quality development, create high-quality life and implement high-efficiency governance. The trade union office of the new district will continue to build a brand with the name of "I". (End)

China defines the green and low-carbon development route of automobile industry.

Xinhua News Agency, Haikou, December 9th Title: China defines the green and low-carbon development route of automobile industry.

Xinhua News Agency reporter Wang Cunfu, Xia Tian

In the first three quarters of 2023, the global sales of new energy vehicles reached 9.746 million, of which the sales in China reached 6.278 million, accounting for 29.8% of the sales of new cars in China; By the end of the third quarter of 2023, the global cumulative sales volume of new energy vehicles was about 37.7 million, with China accounting for about 60%. This information was released at the 2023 World New Energy Vehicle Congress held in Haikou, Hainan from 7 to 9.

"In 2023, the production and sales volume was close to 10 million, which fostered the formation of the world’s largest new energy vehicle consumption market and built an efficient and coordinated industrial system." Xin Guobin, vice minister of the Ministry of Industry and Information Technology, said that new energy vehicles integrate artificial intelligence, the Internet, big data and other revolutionary technologies, and the industrial chain and value chain continue to expand into the fields of transportation, energy, information and communication, and the industrial ecology is being completely reshaped.

On December 7, in the exhibition area of the 2023 World New Energy Automobile Conference, the MG Cyberster model of the MG convertible electric sports car under SAIC was displayed. Xinhua News Agency reporter Xia Tianzhe

Regarding the future development potential of China’s automobile industry, Li Jun, honorary chairman of China Automotive Engineering Society and academician of China Academy of Engineering, believes that there is still room for growth of about 200 million cars in China, and it is estimated that the number of cars will reach saturation around 2055, with a total of more than 500 million cars.

Participants believed that with the continuous improvement and iteration of key core technologies such as power batteries, fuel cells and electric drive systems, the pace of electrification transformation of automobile products continued to accelerate, and new energy vehicles were increasingly able to meet the needs of consumers.

In his keynote speech, Wan Gang, Chairman of China Association for Science and Technology and Chairman of the World New Energy Vehicle Congress, said that the global new energy vehicle market is growing rapidly under the trend of electrification, intelligence and low carbon. It is necessary to promote the development of pure electric vehicles, plug-in/extended-range hybrid vehicles and fuel cell vehicles as a whole, continuously strengthen the coordinated breakthrough of key technologies, and accelerate the application of typical scenarios and the construction of new infrastructure for the integrated development of vehicles, energy and Lu Yun.

Chen Jiachang, Vice Minister of Science and Technology, said that China automobile industry adheres to the overall R&D layout of "three verticals and three horizontals" and has embarked on a successful road of leading the development of new energy vehicles with scientific and technological innovation. The next step will be to comprehensively strengthen the frontier basic research and common key technology research of new energy vehicles, continue to deepen international scientific and technological cooperation, and constantly consolidate the future-oriented development foundation of the new energy vehicle industry.

Among them, green and low carbon is an important direction for the transformation and upgrading of the global automobile industry, and it is also an important connotation for China automobile industry to implement the goal of "double carbon" and achieve high-quality development.

In order to accelerate the green and low-carbon development of automobile industry in China, Roadmap 1.0 for Green and Low-carbon Development of Automobile Industry, which was jointly compiled by various departments, defined the accounting boundary of carbon emission of automobile industry in China for the first time at the industry level, and put forward the vision, goal, realization path and safeguard measures for green and low-carbon development of automobile industry.

According to the road map, the vision goal of green and low-carbon development of the automobile industry is becoming more and more clear: the automobile industry strives to reach the peak of carbon emissions by 2030, and then through continuous efforts, it will support the national carbon neutrality goal to be achieved as scheduled.

In order to achieve the above goals, the roadmap puts forward the realization path: focusing on reducing carbon emissions from automobile operation, and helping low-carbon transportation and energy system construction with low-carbon products; At the same time, promote the industrial competitiveness with the green coordinated development of the whole industrial chain, and promote the comprehensive green transformation of economic and social development with new ecological construction.

In order to support the green and low-carbon development of the automobile industry, the roadmap also puts forward 15 safeguard measures and suggestions in five aspects: promoting the transformation of green and low-carbon management, supporting green and low-carbon technological innovation, promoting the development of green and low-carbon vehicles, building a green and low-carbon manufacturing system, and co-ordinating and building a green and low-carbon collaborative system.

On December 7, 2023, in the exhibition area of the World New Energy Automobile Conference, Weilai es6, et5 and other models were unveiled. Xinhua News Agency reporter Xia Tianzhe

On the 8th, the "Consensus of the 2023 World New Energy Vehicle Conference" was released at the main forum of "Accelerating the Reconstruction of the New Ecology of the Automobile Industry", which further clarified the direction for accelerating the all-round market-oriented development of new energy vehicles, promoting the new ecological reconstruction of the automobile industry and deepening the open cooperation of the global automobile industry. All parties are confident that the global market share of new energy vehicles will reach more than 50% in 2035, and will continue to promote multi-energy power technologies such as high-efficiency and high-safety power batteries, high-efficiency internal combustion engines and carbon-neutral fuels, and wide-temperature fuel cells.

In the first three quarters of this year, domestic tourism reached 3.67 billion person-times, and tourism revenue reached 3.7 trillion yuan.

China Youth Daily, Beijing, December 14th (reporter Xia Jin from Zhongqing Daily, Zhongqing.com) "This year’s tourism market can be described as’ hot’. According to statistics, in the first three quarters of this year, domestic tourism reached 3.67 billion person-times, and tourism revenue reached 3.7 trillion yuan, up 75% and 114% respectively. Residents’ tourism demand has been released in a centralized way, and residents’ travel has increased substantially. While driving the expansion of related consumption, it also promoted economic recovery. "

Du Jiang, Vice Minister of Culture and Tourism, said at the press conference held by the State Council Press Office today on "Accelerating the construction of a strong cultural country and promoting the high-quality development of culture and tourism".

At the press conference. Zhongqing Daily Zhongqing Net reporter Xia Wei/photo

Du Jiang said that in order to optimize the policy environment and solve the difficulties of blocking points, the Ministry of Culture and Tourism will make efforts from both ends of supply and demand to boost tourism investment confidence and consumer confidence; Promote the implementation of the three-year "domestic tourism promotion plan"; Enrich the supply of high-quality tourism products, improve tourism services, standardize the order of the tourism market, strengthen tourism security, and create a tourist destination with quality and temperature. Du Jiang revealed that the Ministry of Culture and Tourism is actively launching a three-year "Inbound Tourism Promotion Plan", which will provide more high-quality tourism products and more convenient services for inbound tourists.

Du Jiang said that in order to promote industrial integration and innovate product supply, the Ministry of Culture and Tourism will further promote the deep integration of cultural tourism, enhance cultural taste, enrich spiritual connotation, cultivate new consumption formats and new models, promote the construction of "small and beautiful" performing arts new space, and innovate and upgrade music festivals, concerts and other products; Promote the healthy development of new formats such as script entertainment and tourism performing arts; Promote the integration and development of food, performances, sports, health care, Chinese medicine and other fields with tourism, so that people can feel culture, cultivate sentiment, experience life and enjoy health during their travels.

In addition, in order to build a good platform carrier and increase the intensity of benefiting the people, the Ministry of Culture and Tourism will promote a series of brand building such as a new batch of national cultural and tourism consumption demonstration cities, national tourist resorts, 5A-level scenic spots, and national night culture and tourism consumption gathering areas; Guide local innovative consumption scenarios, cultivate new formats and consumption patterns, enrich measures to benefit the people, and implement the "100 cities and 100 districts" financial support culture and tourism consumption action plan; We will continue to run national cultural and tourism consumption promotion activities, strengthen publicity and marketing, stimulate residents’ cultural and tourism consumption will, and help market players to resume development.

Source: China Youth Daily client

Zhihu 34,000 likes: How terrible can it be to have culture?

Today is the first day for intensive reading to accompany you to grow up for life.2947sky

01

There is a topic of concern to more than 2.6 million people in Zhihu:How terrible can literacy be?

Answer @artemis ma told a story, which won 34,000 praises:

After retirement, an old professor and his wife signed up for a sunset tour group to travel, but they were dragged into a shopping store dedicated to the elderly by the tour guide, and there was a tendency not to buy or give it out.

The old professor had to wander around until he came to a camera counter.

At first glance, the little sister at the counter was another gullible old man, so she was ready to start fooling.

That would be around 2000, before the popularity of digital cameras, and it was still fresh for many young people, let alone for the elderly.

Little sister at the counter: "You haven’t seen a digital camera, have you?"

Professor: "Yes."

Little sister at the counter: "My photos are clearer than those you have seen ~"

Professor: "Is this cmos or ccd?"

Little sister said with a puzzled expression, "I don’t understand what C is. It’s right to shoot it more clearly than those. Don’t compare it blindly if you don’t buy it."

The old professor laughed and left.

In fact, the old professor didn’t mean to make things difficult. He just heard that the photo effect was very clear and wanted to know the details. I didn’t expect the unprofessional counter girl to ask questions.

For this little sister at the counter, a literate person is terrible.

However, a truly literate person is more than just knowing more knowledge.

Their vision, pattern and way of thinking all determine that they are destined to live a different life from others.

Some time ago, I saw a news that a small county in Hefei had cracked a health care product fraud case, and more than 10 thousand elderly people were deceived.

None of the more than 10,000 elderly people reported the case. Even when the police come to collect evidence, the old man is unwilling to admit that he has been cheated …

Why are some old people cheated without knowing it? In fact, it is a question of thinking mode.

They always feel that their children are busy with work, even people are not at home, and they are neglected to take care of themselves. It is not as good as these sales representatives who sell health care products, not only eager to chat, but also can be on call.

In their view, these kind sales representatives are the people who really care about themselves. They sell things to themselves and really want to be healthy.

But in fact, people with a little cost thinking can see through the scam at a glance.

02

How do educated people see through fraud through cost thinking?

First of all, they know that those sales representatives have to support their families themselves, and it is costly to spend so much time chatting with, helping and even taking care of the elderly every month.

Just look at how much it costs to find a nanny, and you will know how much money each of them must earn from the elderly every month.

Secondly, sales representatives can’t sell a copy by knocking on a door, so the cost of those failed sales promotion should be counted on these old people. They are kind to the elderly, in fact, they are staring at the little money in the old man’s pocket.

Finally, talk about the difference between taking medicine and taking health care products.

If you see a doctor in a hospital, not to mention that doctors are somewhat bound by medical ethics, they should seriously treat patients and save lives for their own promotion. Even the current medical troubles make them very careful when they see a doctor.

Because of the high cost of their mistakes, they are more trustworthy.

What’s wrong with eating health care products? Those sales representatives have no place to find them when they run away. In other words, the cost of their mistakes is very low.

With such a thought, we can know why many seemingly unreasonable things have happened.

I once saw someone ask on the Zhihu:At what moment did you suddenly find reading really useful?

The pigeon who asked for food said that once he went to eat, because it was early and he was the only customer, the boss casually asked, "Is Qin Shihuang the worst emperor?"

The answer to the Lord said very seriously: "Qin Shihuang has made outstanding achievements, implementing three public offices and nine ministries and managing state affairs." The enfeoffment system was abolished locally and replaced by the county system. At the same time, the books were written in the same language, and the cars were on the same track. unified measurement. Attacking Xiongnu in the north, conquering Baiyue in the south, building the Great Wall of Wan Li, building Lingqu, and communicating the water system.

It also pushed China into the era of great unification and created a new situation for the establishment of authoritarian centralization of authority. It has a far-reaching impact on China and the history of the world, laying the basic pattern of China’s political system for more than 2,000 years. He was praised by Li Zhi, a thinker of the Ming Dynasty as’ an emperor through the ages’ … "

The boss said "Oh".

After dinner, the boss resolutely refused to accept money and gave away half a catty of beef.

I think this must be only a small part of the benefits that the Lord has gained from reading. The real use of reading is obviously more than this little kindness.

In September this year, Hubei Daily official micro-announced that Jiang Kui, a 2019 doctor majoring in computer science and technology from the School of Computer Science of Wuhan University, was selected into Huawei’s "Genius Teenager" program with an annual salary of 2.01 million.

Jiang Kui, born in 1994, is still a teenager under 27 years old.

At the same time, he not only received an invitation from Huawei, but also the competition between Ali and Tencent.

In the end, he chose Huawei because he preferred Huawei’s corporate culture.

People who are capable get high returns from society and the market.

03

In recent years, many celebrity training courses have been opened in first-tier cities such as Beijing, Guangzhou and Shenzhen, including gender relations, tea tasting, flower arrangement, etiquette, equestrian, wine tasting and so on.

These training courses are under the names of "First Lady" and "Queen of Gas Field", and they enroll students for the society.

Enrollment targets are mainly entrepreneurs or entrepreneurs’ wives.

Most of these wives have no worries about food and clothing and live a leisurely life. In order to look more elegant, they are willing to spend a lot of money. ?

The same training classes, and for children.

The training class abruptly created a "Celebrity Life Guide", claiming that it can make children "from women to goddesses, from ordinary to extraordinary."

Therefore, they teach their children how to dress, how to drink afternoon tea, how to socialize at dances, how to eat western food, etc., just to make these children behave like noble ladies as much as possible.

And the real noble lady, where is such a superficial packaging?

Their own elegance and connotation come from years of accumulation.

For example, Zhang Yuanhe, Zhang Yunhe, Zhang Zhaohe and Zhang Chonghe, the four sisters of the Zhang family in Hefei, studied China’s traditional poems and essays since childhood, and their father invited famous Kunqu teachers to teach them Kunqu opera.

Sometimes when the four sisters are happy, they will have a competition on the same stage. ?

It is said that there was always a euphemistic and beautiful Kunqu opera from the Zhang family at that time, with a lingering sound that was extremely beautiful.

A real celebrity is not amazing in appearance or noble in birth, but elegant and generous in both internal and external cultivation.

Only those with cultural background can be called celebrities, and those with empty skins can only be social flowers.

A literate person, even if he is ugly and humble, naturally exudes unique charm.

The culture I understand is not only a vast amount of knowledge, but a spiritual temperament composed of experience, vision, common sense and way of thinking.

Of course, in this process, the amount of knowledge is the foundation. At least you have to read some books and try to understand the knowledge in several fields.

As the saying goes:

When we were children, we ate a lot of food, but now we can’t remember what we ate.

But what is certain is that some of them have grown into our bones and flesh.

By the same token, a book that a person has read carefully has already melted into his soul and precipitated into wisdom and emotion. As long as it is touched, it will burst out.

04

2 pieces of advice to make you a literate person:

① Read more classics..

Classics are books that are still worth reading at present and in the future after being screened and eliminated by time.

Classic works generally have two characteristics:

First, it can stand the test of the strictest filter of time, which is the essence and core index..

A man knows his companion in a long journey and a little inn. Anything that has been experienced for a long time and its value has not been consumed has the conditions to become a classic.

Second, it has high originality, uniqueness, foundation and cognitive depth..

Therefore, even if the time and space change dramatically, we can revisit it again and again anyway, and each reading can inspire us. The text itself, explaining the point of view, the two interact endlessly, just like life is endless.

People have limited time in their lives and can’t read many books. The average person’s reading volume is in the order of thousands.

We can read for leisure, but we have to arrange enough time to read for improving our cognitive ability.

The reason is that with high-quality input, it is possible to have high-quality output and accelerate growth.

Therefore, classics must be included in your reading list.

② Be a lifelong learner..

I don’t know if you have this feeling. After a long period of training in society, you gradually realize the truth: the more you read when you are young, the more people you have experienced, and the wider your horizons and the bigger your pattern when you grow up.

He can think deeper about the same topic than you, and he can quickly find the key to the same problem. Wang Guowei called this realm of wisdom the third realm of university questioners.

To achieve such a state, we must devote ourselves to becoming a lifelong learner.

Learn a little every day and make a little progress every day. With the accumulation of time, you can gradually see your own changes and open the gap with others.

# Music

I can’t sleep alone in an empty room. I can’t help thinking about you. I look at your photos and my eyes are blurred with tears. I also look forward to seeing you again. Your sweet words and vows come to mind again and again, and I can’t forget your face. I cried my eyes red and fell into the endless abyss. I really love you with indifference, and the more heartache I have, the more I can’t escape. You forgot the promise you made to me, and you forgot that you loved me so much.

Recently, I read this sentence: Maybe you feel out of place with your surroundings, but it is the time you spend alone that makes you more and more interesting. When people finally notice you one day, they will find a cooler person than they thought.

Sports and Health | Science Movement, Have you done it right?

Physical activity preparation questionnaire

Before you plan to exercise, please read carefully and answer the following six questions according to your actual situation for your safety.

whether or not

□□ Did the doctor tell you that you have a heart disease or can only participate in physical activities recommended by the doctor?

□□□ Have you ever felt chest pain or severe breathlessness when you are engaged in physical activities or sports?

□□ Since last month, have you ever felt chest pain or severe breathlessness when you have not participated in physical activity or exercise?

□□ In the past 6 months, have you ever fallen down or lost consciousness because of dizziness when you were engaged in physical activities or sports?

□□□ Do you have any bone or joint pain or dysfunction aggravated by physical activity or exercise?

□□ Did the doctor tell you that your blood pressure is over 180/110mmHg?

If you answer "Yes" to any of the above questions, please stop taking part in this fitness exercise and pay attention to: (1) consult a doctor before taking part in the fitness program and explain which question in the questionnaire is answered "Yes"; (2) Take part in fitness activities step by step, gradually adapt, the intensity of exercise should not be too large, and the time should not be too long; (3) You can restart the fitness mode that has been proved to be safe; (4) You can also participate in activities recommended by doctors or activities allowed by doctors; (5) timely use of necessary medication.

If you answer "No" to all the above questions, you can continue to exercise, but please pay attention to the following: (1) Take part in a large amount of exercise or exercise intensity gradually to avoid excessive fatigue; (2) Take part in further health evaluation, and work out the best fitness program accordingly.

Note:This questionnaire was established by the research group of Professor Wang Zhengzhen of Beijing Sport University with reference to relevant materials. It is suitable for people aged 15-69, and people over 69 should consult their doctors before doing fitness activities.

In recent years, with the in-depth implementation of national fitness, people’s participation has been continuously improved, and "more exercise and less illness" has increasingly become a social consensus.

What are the benefits of regular exercise to human health? What are the important principles of the scientific movement? How can we avoid sports risks? Our reporter interviewed Zhang Yimin, a professor at Beijing Sport University and director of the Key Laboratory of Sports and Physical Health, and asked him to answer questions.

Late-night exercise is extreme

Scientific movement is a good doctor. "Scientific exercise can not only effectively improve heart and lung function, promote human metabolism, strengthen muscle and ligament strength, but also make people happy physically and mentally, enhance their ability to resist stress and promote their physical and mental health." Zhang Yimin said that "integration of physical education and medicine" is an important way to implement the Healthy China Action, which plays a positive role in improving and promoting people’s health.

Is there a best time to exercise in a day? "In fact, when exercise has little effect on the fitness effect. From the factors that affect the fitness effect, the key is that the exercise load should match the individual’s physical health." Zhang Yimin introduced that the time period of people’s exercise is mainly influenced by the schedule. "Take me as an example, I am busy with teaching and preparing lessons during the day and have no time to exercise, so 18: 00-20: 00 after work will be the best time for me to exercise."

In recent years, some gyms in first-tier cities have launched 24-hour gyms to cater to the "special work and rest time" of office workers. According to the fitness statistics released by Leke in July last year, in Beijing, the proportion of fitness people from 22: 00 pm to 8: 00 am the next day is 12.8%. In the whole country, the proportion of members who exercise during this period is close to 10%.

Do sweaty exercise in the middle of the night when you should be sleeping. Is this exercise a plus or a minus for your health? "I think it is to reduce points. Late-night exercise is a bit extreme, which may disrupt the biological rhythm." Zhang Yimin reminded that it is more appropriate for office workers to squeeze out 30 minutes to 1 hour for exercise before dinner after work. If you occasionally work late in special circumstances, such as getting off work at 10 o’clock in the evening, and you really want to exercise, it is recommended to take a light activity for 30 minutes and sweat. "You know, rest is also an important way to eliminate fatigue, and exercise is systematic and long-term. If you don’t exercise one day, you can continue to exercise later. It is unnecessary and discouraged to exercise late at night."

Now it is the spring season, and many people who have been "cats" for a winter have begun to go outdoors and exercise their muscles. "In fact, any season is suitable for exercise, but beware of extreme weather." Zhang Yimin stressed that don’t exercise in cold, hot, high humidity, strong wind, pollution and radiation environment; The temperature difference between spring and autumn is large, and the temperature is low in the morning and evening. Pay attention to the influence of temperature and wind when exercising; Exercise in summer should guard against heatstroke; If there are special circumstances such as smog and sudden drop in temperature in winter, it is not recommended to do outdoor sports.

Don’t forget to stretch after exercise.

"Generally speaking, moving is definitely better than not moving." In Zhang Yimin’s view, scientific movement needs to follow the basic principles of safety, overall accuracy, step by step, perseverance and so on, and in terms of exercise mode, exercise intensity, exercise frequency, exercise duration and so on, it should be adapted to local conditions according to people and time.

Security principle. "It is very important to do warm-up activities before exercise and stretching exercises after exercise, but the latter is often ignored by many people." Zhang Yimin pointed out that during exercise, human muscles constantly contract and exert their strength, and their elasticity decreases. If they don’t stretch for a long time after exercise, these problems may be brought about: local inflammatory factors and metabolic wastes can’t be discharged, which leads to increased fatigue and slower recovery; The next training with fatigue will increase the risk of injury and induce sports injuries such as "running knee".

"If the muscles in the hind leg feel hard, and the knee joint is already tired or faintly uncomfortable, it may be caused by strain caused by not stretching after exercise." Zhang Yimin introduced that studies have confirmed that stretching after exercise helps to relax muscles and improve muscle elasticity, which is one of the "magic weapons" to reduce sports injuries. Stretching practice time should be at least 10 minutes, or about 1/3 of the duration of exercise.

Principle of comprehensiveness. Different types of exercise will bring different fitness effects, and the exercise methods are better, preferably including aerobic exercise, strength training and flexibility training. Aerobic exercise can make people’s heart and lung function better, and it also directly affects the activity ability of the whole body organs; Strength training helps to improve muscle strength and avoid problems in daily activities such as walking, running and jumping caused by insufficient strength; Flexibility training is stretching exercise, which can improve the stretching ability of muscles and effectively prevent sports injuries.

Principle of accuracy. As long as the fitness action standard and exercise load are reasonable, sports injuries can basically be avoided. The "fake" action of posing, not exerting force and nonstandard "wrong" action are the main causes of sports injury accidents. For example, "sit-ups with your head in your arms" is a typical non-standard movement, which may lead to sports injuries. If your hands are lightly placed behind your head or on your ears or chest, you should mainly use your abdomen to pull your trunk, instead of using your hands and head, which is not harmful, but also can exercise your core muscles well.

The principle of gradual progress. The frequency of exercise varies from person to person. Generally speaking, you should exercise at least three times a week, and it is best to gradually increase it to five times a week to ensure the fitness effect. No matter what your physical fitness level is, you should do what you can when exercising, and you can’t ignore the signals sent by your body. If you have dizziness, dizziness, chest pain, nausea, shortness of breath, palpitation, vomiting and other symptoms during exercise, you should stop exercising immediately and seek medical advice in time. If you have persistent and obvious fatigue after exercise, you should appropriately reduce the exercise time or times. When you feel in good physical condition, you can also exercise for a while.

The principle of perseverance. To achieve good fitness results, it is essential to participate in sports persistently. It is suggested that according to one’s physical health and sports ability, an achievable exercise goal should be established and a feasible exercise plan should be made. Work and rest should be combined in life to avoid giving up the exercise plan because of being too busy or too tired; We should understand sports from the height of "exercise is a part of life" and stick to it for a long time.

Avoiding sports risks in advance

Zhang Yimin pointed out that for most people, physical exercise is safe. However, special groups such as the elderly, children, pregnant women, menstruating women, those with heavy weight, and those who have been under exercise for a long time need to pay special attention to avoid risks before exercise.

People who don’t usually exercise regularly, especially the elderly, must start with low intensity (about 50% or slightly less of the maximum heart rate), short time (about 10 minutes) and long interval (exercise for 2-3 days a week), and then gradually improve the intensity after 3-6 months of adaptation; Children are highly excited during exercise, but they are easy to get tired. It is best not to let children do a single exercise for too long. For pregnant women and menstrual women, high-intensity exercise is not recommended, but moderate exercise within the body’s tolerance, such as walking; Heavy people are not suitable for running, in case they hurt their knees.

"Inappropriate physical exercise, such as exercise in bad environment, untimely exercise, exercise beyond physical endurance, exercise of people with congenital or acquired cardiovascular diseases, etc., may cause and aggravate pathological changes in the cardiovascular system, and cardiovascular accidents may occur. In severe cases, sudden death may occur." Zhang Yimin introduced that the main symptoms of cardiovascular accidents include chest tightness, chest pain, heartburn discomfort, syncope, abnormal dyspnea, etc. Common diseases include coronary heart disease, myocardial infarction, myocarditis, congenital cardiovascular abnormalities, etc.

"Generally speaking, if there is no problem with cardiovascular health, the risk of cardiac arrest or myocardial infarction caused by moderate-intensity physical activity is low. Most of those who died suddenly during exercise have been diagnosed or have hidden cardiovascular diseases. " Zhang Yimin pointed out that although the incidence of vascular accidents in sports centers is not high, it is harmful. In order to avoid the occurrence of vascular accidents in sports centers, we should properly understand the relevant health knowledge, consciously make full preparations and pay attention to self-protection in cold or hot and humid environments before doing fitness exercises. Follow the basic principles of different people and step by step, adjust mental state and control exercise intensity, so as to achieve the best fitness effect.