Reasons for today's teenagers look older than his age

You probably have noticed that today's 15-year-old boys and girls often look for 20 or even 30 years! And behave is usually suitable. "Why is this happening?" - you ask. To answer this question, scientists have tried from different fields. And that's what they found out.

Acceleration

Models pictured 13 years

Over the past 100-150 years, there is not only a marked acceleration of the development of the younger generation, but also the "growth" of humanity as a whole. For example, the height of modern men 20-25 years increased on average by 8 cm compared to men who lived 100 years ago. We today are superior to their ancestors about the head, and puberty in modern girls and boys sometimes occurs even in 10 years! For comparison, in 1860 this figure was 16, 5.

The final body formation in girls and boys comes in 16 and 18 years respectively. Previously, this took place in 20 and 22 years old. In fairness it should be noted that the guys are still a little bit inferior to the girls in the development - they are "lagging behind" for about 1 year.

The aging of modern humans, too, is later than that of their ancestors. But this is due, first of all, with medical advances and improved nutrition. According to statistics, the average age of onset of human aging is 65 years old.

However, these figures may vary depending on the country. For example, in Japan, which is famous for its high quality of life, old age begins at age 76. But in Papua - New Guinea - in 45 and a half.

Due to early puberty in girls has increased dramatically and the reproductive period. Now, even in 40-50 years women are able to bear children. According to statistics, menopause occurs on average 50 years old and above. Over the years, it changed even the physique of man. Growth increased, the body fell. The girls greatly reduced pelvis. According to scientists, this happened as a result of evolution. Many women today are used to facilitate the delivery itself by Caesarean section, in consequence of which the body begins to adapt to the new conditions.

The impact of technological advances

There are many versions about the fact that the launched process of acceleration, and it is impossible to say which of them is correct. The most common theory is considered to be on the impact of technological advances. This is what it says it is:

- at the expense of electricity increased daylight hours;

- heating due to increased average indoor temperature;

- accelerated development of medicine.

All these factors led to the fact that the human body has ceased to deal with aggressive environment, as it was many years ago. Now he throws all his strength to development, which contributes to less wear on the human body.

Argue with that, of course, is pointless, but let's take a look at the arguments of the followers of other theories.

The effect of chemicals

According to this version, the accelerated growth of humanity occurred as a result of influencing people to harmful chemicals that are contained in almost all modern products, hygiene products and cosmetics.

In particular, scientists blame the endocrine disruptors (Eng. Endocrine disruptors, or EDCs). These are substances which, when ingested, act as growth hormones. And though this theory seems quite reasonable, concrete evidence of its truth today is not found.

Effect of food

Another reasonable explanation of acceleration. This theory is also called nutritive. Its proponents believe that with the improvement of the quality of human nutrition growth strongly went up. This is associated with more frequent use of meat, compared with 50-60 mi years, and the presence therein of such vitamins as B9, B6 and B12.

For example, in the USSR, according to statistics for the year 1965 per capita was about 37 kg of meat. In 2013, the average Russian eats more than 73 kg. Globally, the data are as follows:

- in the middle of the XX century, a person uses 23 kg of meat per year, in 2014 - 43 kg.

Of course, this does not mean that if you start to eat meat every day, then a year later you reach a giant size. But the fact that this product contains the substances necessary for the growth and development of a young body - the truth.

Which of these theories to stick to you. Exactly the same as what is good or bad.

Some people estimate the acceleration process is positive, the other - say that it has led to the emergence of many social problems. For example, in today's children as a consequence of early puberty is practically no "normal" childhood. Many girls in 11 years become "women" feel adults are attracted to the opposite sex, while their counterparts 30-50 years ago, at this age were still playing dolls.

What about it do you think?