means that as long as you miss this time period and want to get the same harvest, you may have to pay several times the hard work, and you will never be able to get it back. Height, vision, teeth and foreign languages all have such a time window.
recently published a study in "The Lancet":
from 1985 to 2019 in the 34 years, the world's fastest growing countries in height are China and South Korea. Moreover, looking at the height at the age of 19, the average height of Chinese men is 175.7cm, and the average height of Chinese women is 163.2cm, both of which are East Asia first. In 35 years, the average height of Chinese men has increased by 8cm, and the global ranking has risen from 150 to 65; the average height of women has increased by 6cm, and the ranking has risen from 129 to 54. The country with the highest average height of
is still the Netherlands, with 183.8cm for men and 170.4cm for women. The shortest male is East Timor, 160.1cm. The shortest female is Guatemala, 150.9cm. Time window of
height: epiphyseal line before closing
In addition, this study also counts height, body mass index, etc., here we only talk about height. There is a time window for the height of
. Aware of the existence of the window period, it can be filled before the window is closed; without realizing it, no matter how hard you work in the future, there is no hope.
First of all, we all know that height is determined by genetics and environment. What is the percentage of genetics? According to the statistics of American whites, 80% is determined by genetics; and the Chinese statistics 20 years ago is that 65% are determined by genetic factors. The big difference between
is caused by lack of nutrition. Because in the case of adequate nutrition, diet at least does not restrict height, so height is more determined by genes; in the case of relatively lack of diet, even if genes want to play a role, it is difficult to exert force because of lack of food, so height The growth trend has stopped. If the suspension is too long and the window period is missed, it will be impossible to grow taller in the future.
For height, the time window is the moment when the epiphyseal line is completely closed. In the developmental stage of the human body, the bones are also elongated and thickened. There will be newly grown cartilage at both ends of the bone, and they will gradually become part of the bone. This part is called the "epiphysis".
Because the femur is the longest in the human body, whether the epiphyseal line at both ends of the femur is closed or not determines whether the height can continue to increase. The picture below is a comparison of closed and unclosed epiphyseal lines, you can take a look.
Some people may be closed at the age of 13, and some people may not be fully closed at the age of 23.
As long as you find that your height has stopped growing before closing, take actions, such as increasing explosive power and stretching exercises, getting more sun exposure, ensuring sufficient calcium in your diet, sleeping until you wake up naturally, eating less free sugar, or even when necessary In the case of regular injections of growth hormone, you can restore a few centimeters to ten centimeters in height. The most famous example of
is Barcelona star Messi. If his parents always thought that he was a late-grown type, then maybe his final height was only 1.5 meters, and he would never become a professional player. But his parents realized that when his epiphyseal line was close to closing, he used the professional treatment of that era, and it cost nearly 1,000 US dollars a month to have Messi's height of 1.69cm today.
The time window of vision: Before the age of 20,
has a time window in addition to height, which is before the age of 20. According to statistics from the Ministry of Education, the myopia rate of Chinese primary school students is 45.7%, the myopia rate of junior high school students is 71.6%, the myopia rate of high school students is 81%, and the myopia rate of college students is 86.7%. Half of the 1.4 billion people have myopia, and such a high proportion of myopia ranks first in the world. The myopia rate among young people in the United States is only 20%, 15% in Germany, and less than 5% in Australia.
In sharp contrast, the national eye exercises have never stopped and have been doing it for sixty years. This fact shows two points:
first, the time of Chinese students at school is very unfavorable for eye health;
second, eye exercises have no effect.
It is very difficult for individuals to change in this big environment, so as long as you go to school in China and graduate with a master's degree, 90% of you need to wear glasses.
But in fact, even if you don’t change the environment, as long as you seize the time window, you have the opportunityChildren who should wear glasses can not wear them. This is before the eyeball shape is completely fixed, that is, before the age of 20, the treatment of OK mirror .
people are presbyopic when they are born, and the eye axis (the distance from the cornea to the retina) is relatively short. With age, the axis of the eye will gradually elongate. By the age of 20, the eye axis should be elongated to a suitable size. At this time, the light enters the pupil, is refracted by the lens, and should converge on the retina to form a clear image.
However, in a growing environment where there is a serious lack of outdoor light, the eye axis will be elongated excessively. It may be stretched to a suitable position in the teenage years, and then continue to stretch. As a result, the clear image began to blur, and the child became nearsighted. Until the age of 20, the development of the eyeballs is complete, the shape does not change, and the child's nearsightedness can be as many degrees as possible.
Before that, if you catch the window period, you can avoid becoming myopia.
Let me give an extreme example: parents are both 800 degrees of high myopia, and the child is not genetically dominant, and myopia begins in elementary school. If the child’s parents know that there is a window period for vision restoration in the world, and there is an OK lens that can effectively control myopia, once they grit their teeth, spend more than 10,000 yuan to equip the child with an OK lens and wear it every night. When he was in college, the shape of the eyeballs was fixed, and he might find that the child's binocular vision with the naked eye was still 1.0, unlike his parents who became highly myopic. The time window of
teeth: The time window of
teeth after the first tooth replacement is after the first tooth replacement.
recently reported that the price of heart stents will no longer be 14,000 yuan each, but 800 yuan each. The news is true. Because the price of medical equipment set by the state is dead, so in the future, the elderly will not be so expensive to perform surgery on heart stents.
Of course, this matter is far from being as simple as I said. It can be said that as long as it is not the result of free market competition, even a seemingly good decision can easily bring about counterproductive effects.
In the comments below this news, I saw someone with emotion, when will the dental implants be available for 800 yuan?
is right. Nowadays, implanting teeth are very expensive, and one can cost thousands of dollars, and even good materials cost 20,000 to 30,000. These bad teeth and missing teeth were in fact avoidable decades ago, when the teeth grew for the second time.
At that time, if you spend tens of thousands of dollars and a few years, you are not afraid of pain, not afraid of trouble, and an orthodontic treatment can keep your teeth healthy in the future. Because neatly arranged teeth are not easy to leave dirt, and bacteria are not easy to multiply, so over the years, neat teeth can last 20 to 30 years longer than teeth that go in and out.
A dental implant equivalent to the level of a real tooth is calculated at 20,000 yuan. If you seized this time window at about 10 years old, you would have 10 more healthy teeth than others after 60 years old. One hundred thousand.
Time window for learning foreign languages: before the age of 5
In addition to height, vision, and teeth, we also have a time window for learning foreign languages, which is before the age of 5.
Many of us have gone to school for 18 years and learned English for at least 12 years, but without subtitles, we still can’t read American TV shows. But in fact, only spend 1/3 of this effort to learn a foreign language, just put the time at the age of 1-5. Maybe your listening and speaking level of English when you graduate from elementary school has surpassed many people who graduated with a master's degree.
This is because there is also a time window during brain development. From infancy to early childhood, when the brain is exposed to any language, it can quickly grow neuron connections suitable for processing that "pronunciation law". After those neurons are connected to form a "pattern" and then fixed, the signals will be automatically processed at a high speed when they encounter similar patterns in the future. Just like after we learn to ride a bicycle, we no longer have to think about how to adjust the balance, we will ride that way.
If you miss this age group, when the neuron connection pattern in the language area of a person's brain matches a certain language, when a new language appears, it can only be processed by rational thinking, such as distinguishing words. Pause between words. This is very slow and tiring.
is more than just language. There are window periods in many aspects of brain development.
For example, when some children are born, except for the muscles of the eyelids, everything else is normal.Covered, no visual information is received. After the child was 5 years old, he was finally able to undergo surgery and pulled his eyelids up, but his eye was permanently blind. In fact, all the physical structures of his eyeballs are normal, but the retina and the optic nerves behind them failed to grow out correctly before the window period closed, so he was blind. The same is true of hearing.
Having said that, I don’t know if you have noticed: the window period things, such as height, vision, teeth, and language ability, mostly appear during development.
is the same with the growth of a person. Whether he can become an independent and free person is highly related to his experience before the age of 25. If a person has not left the house very much when he reaches 30 years old, his parents have arranged everything. If he just reads, he will miss the window of personality independence. Afterwards, even if he is rich in clothes, his heart will be erratic. Stable views and persistence.
If he has developed the habit of being responsible for everything himself and not attached to any organization or individual before this, then his future life will be much more open.
Obtained from "Zoke Science and Technology Reference"
