The Secret of Longevity

The pursuit of mankind has never stopped on longevity. In recent years, want to use the power of modern science to extend the life of mankind, has become the direction of the efforts of scientists. Now the "longevity secret" a lot, but they really fly it? How can people be longevity? Recently, "Time magazine" with 23 pages published a special report, mainly to say how people can live longer, modern technology can help us to extend the life to what extent. "Get" subscribe to the product "Ma Xujun said the magazine" for us to read this report, I'll give you a quote.

First of all, since ancient times, how long people have longed for longevity. There is no need to say in the past, people eat a lot of strange plants, with heavy metal refining elixir, there are people to the animal tissue transplanted to the human body. To the modern, people are still carrying out a lot of research, the world's longevity is the most fanatical, not scientific workers, but Silicon Valley well-known entrepreneurs. Such as Oracle's founder Larry Ellison, who has spent $ 300 million to study aging and cure geriatrics; Google co-founder Larry Page, or even set up a company specifically for this , To study how to extend human life; also, such as entrepreneurial godfather Peter Till, just to a study of how to extend the life of non-profit organizations to donate 7 million dollars.

What is the scientific research on longevity now under the keenness of modern people? "Time" refers to the existing four methods:

The first method is blood transfusion, the health of young people's blood, lost to those older people. There is a company in the United States dedicated to providing such services, people can spend $ 8,000, from the healthy young people to buy blood lost to their own. The theory of the company's propaganda that young people's blood there are some factors that can help the cells repair and regeneration, into the young people's blood can help the elderly to delay aging, to restore vitality. But in fact, this experiment only in animals, although it can improve the health status, but the effect is not particularly obvious, but in fact the effect of the human body has not been verified.

The second method is to give the body a comprehensive pixel-level check, genome sequencing and biopsy. This is a way to predict the disease you may have in order to prevent or even early surgery, but this check is very expensive, once needed 25,000 US dollars, so far the United States only 400 people have done such a check, of which 40% Identify health risks, such as cancer, aneurysms and even heart disease. This method can be achieved in technology, but first of all is expensive, followed by "traumatic disease" in the form will also bring a huge psychological burden.

The third way is to take medicine, or eat supplements. Now there are about two kinds of market, one can help people to delay aging, re-activation of cell vitality, but this drug has not done clinical trials, so only as a health supplements, can not be considered a real medicine; the other can help People activate brain cells, but the ingredients and functional drinks are almost the same, after taking the feeling of the brain seems to be really flexible, but scientific research shows that this may only be "placebo effect" is not necessarily the effect of the drug itself. Therefore, these two drugs, are currently not proven by the scientific method effective.

The fourth method is high-tech diet. Experiments show that if you reduce calorie intake, a few days a week do not eat only drink water, help to extend the life of mankind. However, the benefits of regular diet on health, in the end because of the reduction of the risk of obesity caused by various diseases, or from the regeneration of healthy cells, in fact, is not clear, and even if the role is also quite limited.In general, these methods either do not fly, or the cost is too expensive. So, we ordinary people want to longevity there is no practical way? "Time magazine" also gives three suggestions.The first suggestion is to want to live long, we must maintain a strong curiosity. The study, from the director of the longevity center at Stanford University, said that for the things to maintain a learning mentality, always let themselves in the state of knowledge, people can think and cognitive ability is not degraded.

The second suggestion is to eat more fruits, vegetables and nuts, and eat more than you think enough that the amount of more. A survey in 2015, after investigating 450,000 European adults, found that those foods made up of plants were 20 percent less likely to suffer from cardiovascular disease than others. Harvard's study also found that those who prefer to eat fruits and vegetables, the risk of heart disease is 30% lower. So, eat more fruits and vegetables, reduce calorie intake, to maintain health is good, less intake of 25% a day calories, the effect is better.

The third suggestion is, may wish to think about aging this thing for their own meaning. Yale University School of Public Health Professor Levy has done an experiment and found that young people in the old age to do serious thinking, is very good for health. Those who have a positive attitude towards aging are an average of 7.5 years more than those who have a negative attitude towards old age. In other words, for the aging of this thing has a positive and correct view, but to help more longevity.

Treatment of Large City Diseases with Small and Medium Sized Cities

We often hear a keyword, big city disease, that is, large cities in the population expansion, traffic congestion, housing difficulties, environmental degradation, resource constraints and other "symptoms." An effective way to alleviate the disease in large cities is to develop small and medium-sized cities. So, how to effectively promote the development of small and medium cities? Recently, the surging news reporter interviewed the Chinese city and small town reform and development center chief economist Li Tie. Li Tie said that to break the hierarchical regional administrative boundaries, to the small and medium-sized city independent administrative power, with the city management divide and cure methods to promote the development of small and medium-sized cities. Here to talk about in detail.

First, the development of small and medium-sized cities in China is facing the problem. At present, China is the implementation of the city management system. What does that mean? Is the high level of large cities or mega-cities to manage low-grade small cities and small towns. In this way, high-level cities will gather resources in their own here, limiting the surrounding small and medium-sized cities and the development of small towns.What are the major cities or mega-cities to mobilize resources? There are three types:

First, the upper reaches of the program resources, such as land indicators. Who got the land index, who had the right to development. But recently these years, most of the land indicators left to the central city, to the county on the very few, to the town basically no.

Second, the implementation of fiscal policy. In a province, a large part of the main income of the lower government is to be handed over to the higher authorities.

Third, the higher cities can also be through the administrative planning, the original subordinate county or county town, changed its own direct jurisdiction of the region, to better mobilize resources.How should this change the status quo? Li Tie that the implementation of regional management and urban management division of governance, that is, to adjust the allocation of resources, to more power in small and medium-sized cities. Now many large towns have reached the level of medium-sized cities, if you can give them more development space, will be formed in the metropolitan area around the city.

For example, many cities in the world, the mega-city is only an independent main city, the metropolitan area is far beyond the scope of mega-city. Like Japan's Tokyo metropolitan area has 36 million people, then enlarge is 42 million people, the core of the main city is probably 10 million people, more around the metropolitan area is small and medium-sized cities. If we compare Beijing and Tokyo, Seoul and London metropolitan areas, we will find that the number of small and medium-sized cities in the metropolitan area of ​​developed countries is many times that of China.

What are the benefits of forming the metropolitan area? Li Tie said that the city's development results, is the central city of the cost of a substantial increase. But after the formation of the metropolitan area, some large industrial enterprises can be transferred to the surrounding. The development of industrial enterprises requires a lower land cost and a relatively independent development environment. If they are mostly located in the main city, both elevated the price, but also exacerbated the traffic congestion, to people's lives brought a lot of inconvenience. If the future can actively promote the development of small and medium cities around the mega-cities, to encourage industrial enterprises to move in the past, both to reduce the pressure on the main city, but also to reduce the cost of these enterprises. In the international community, such as Microsoft, Apple, Boeing and other large enterprises, are also located in the big city around the town.

Speaking of which, some people may ask, under normal circumstances, the management level of large cities is relatively high, poor management of small cities. Let the small city to build a city out, will not cause more problems? Li Tie said, in fact, the country more than 800 large town, to create revenue and the ability to develop enterprises is not worse than the big city Although the big cities can use administrative resources to attract foreign investment, gathering vitality, but the efficiency will be greatly reduced, and finally lead to the city cost is too high, the development of crisis.

Give a few large town examples, such as Zhejiang Wenzhou Liu City, Longgang, Zhongshan, Guangdong Xiaolan, Dongguan Humen Changan, population size are in the hundreds of thousands. If you rely on the power of the market, these large towns can develop very well, very dynamic. For example, Dongguan's foreign population is about 6.8 million, equivalent to four times the local population, most of these people live in the town or the village. The more active the population is, the more vibrant and competitive.

But now most of these urban resources have been taken away by higher authorities. Li Tie has been to these places to do the investigation and found that their higher-level government where the city is very beautiful, but those who created more wealth and the development of the real economy of the large town infrastructure is seriously behind.

Li Tie suggested that in the process of urban development, the opportunity to transfer to the market. Through the market-oriented way, the population and industry reasonable allocation in the surrounding small and medium-sized cities, it will not cause the city core area is too large, but also to promote the development of small and medium cities.