The human body is constantly being updated

2024 Author: Seth Attwood | [email protected]. Last modified: 2023-12-16 15:55

I say all the time that our body is magnificent and ingenious. What we only need is not to interfere with his work. And of course, do not feed him any poisonous muck.

After giving up poisons and starting to eat healthy food, after a while we will get a completely healthy body, unless, of course, we have not had any very serious diseases before. But my favorite scientists say that even serious illnesses can be significantly alleviated and cured over time by switching to proper nutrition.

So that's what I'm all about.

All cells of our body are constantly renewed, and we have, with some periodicity (each organ has its own period), completely new organs.

Leather:the fastest renewal is the outer layer of the skin in contact with the environment. Epidermal cells are renewed every 2-3 weeks. The deeper layers are a little slower, but on average, a complete skin renewal cycle occurs in 60-80 days. By the way, interesting information: the body produces about two billion new skin cells per year.

But then the question arises, why does the skin of a one-year-old child and a sixty-year-old person look completely different. There is a lot of unexplored in our body, but so far it is believed that the skin is aging due to the deterioration (over the years) of the production and renewal of collagen, with which this is still under study.

At the moment, it has only been established that factors such as improper and poor (lack of fats and lack of proteins) nutrition, as well as too aggressive environmental influences, are very significant.

They impair collagen production and quality. An excess of ultraviolet radiation also negatively affects skin regeneration. But, 20-30 minutes in the sun is considered a therapeutic dose that has a beneficial effect on many processes in the body, including skin renewal.

The cells of the epithelium covering the stomach and intestines come into contact with the most aggressive environment (gastric juices and enzymes that process food) and become thinner, food constantly passing through them. They are updated every 3-5 days!

The structure of the mucous membrane of the tongue is very complex, and we will not go into details. The rate of renewal of various cells that make up the mucous membrane of the tongue (receptors) is different. In simple terms, we can say that the renewal cycle of these cells is 10-14 days.

Blood - the liquid on which our whole life depends. About half a trillion different blood cells die in the body of the average person every day. They must die in time for new ones to be born. In the body of a healthy person, the number of dead cells is equal to the number of newborns. Complete blood renewal occurs within 120-150 days.

Bronchi and lungs they also come into contact with an aggressive environment, therefore they renew their cells relatively quickly. The outer cells of the lungs, which are the first layer of defense against aggressors, are renewed in 2-3 weeks. The rest of the cells, depending on their functions, are updated at different rates. But in general, the body needs a little less than a year to completely renew the lung tissues.

Alveoli of the bronchi updated every 11-12 months.

Hair grow on average by 1-2 cm per month. That is, after some time we have completely new hair, depending on the length.

The life cycle of eyelashes and eyebrows is 3-6 months

Finger nails hands grow at a rate of 3-4 mm per month, the cycle of complete renewal is 6 months. On the toes, nails grow at a rate of 1-2 mm per month.

Liver, truly the most magical organ in our body. Not only does it cleanse us all our life of all that garbage that we put into our body, but it is also a champion of regeneration. It has been established that even with the loss of 75% of its cells (in case of surgery), the liver is able to recover completely, and after 2-4 months we have its full volume.

Moreover, at the age of up to 30-40 years, it regenerates volume even with interest - by 113%. With age, liver recovery occurs only 90-95%.

Complete renewal of liver cells occurs in 150-180 days … It has also been established that if one completely abandons poisonous products (chemicals, medicines, fried foods, sugar and alcohol), the liver independently and completely (!) Is cleared of harmful effects in 6-8 weeks.

Our health depends a lot on liver health. But even such a hardy organ as the liver, we (by trying) can kill. Large amounts of sugar or alcohol can cause irreversible effects in the liver in the form of cirrhosis.

Kidney and spleen cells updated every 300-500 days.

Skeleton our body produces hundreds of millions of new cells every day. It constantly regenerates, and has both old and new cells in its structure. But the complete cellular renewal of the bone structure occurs in 7-10 years. With significant imbalances in nutrition, cells are produced much less and of inferior quality, and as a result, over the years, we have such a problem as osteoporosis.

Cells of all types of muscle tissue completely renewed in 15-16 years.

Heart, eyes and brain are still the least studied by scientists.

For a very long time, it was believed that the muscles of the heart do not renew themselves (unlike all other muscle tissue), but recent discoveries have shown that this is a misconception, and the muscle tissue of the heart is renewed in the same way as the rest of the muscles.

The studies have just begun, however, according to preliminary data, it is known that complete renewal of heart muscles occurs approximately (there is no exact data yet) for 20 years. That is 3-4 times in an average life.

The mystery is still the fact that lens of the eye does not update at all, or rather, why the lens is not updated. Only the cells of the cornea of the eye are restored and renewed. The update cycle is fast enough - 7-10 days. In case of damage, the cornea is able to recover in just a day.

However, this does not negate the fact that lens cells are never renewed at all! The central part of the lens is formed in the sixth week of intrauterine development of the fetus. And for the rest of its life, new cells “grow” to the central part of the lens, which makes it thicker and less flexible, deteriorating the focusing quality over the years.

Brain - that's a riddle of riddles …

The brain is the least studied organ in our body. Of course, this is associated with a number of objective factors. The brain of a living person is very difficult to study without harming it. Experiments on humans are prohibited in our country (at least officially). Therefore, studies are carried out on animals and terminally ill human volunteers, which is not at all equivalent to a healthy, normally functioning person.

Until recently, it was believed that brain cells never renew. In principle, things are still there. The brain, which controls our entire complex system called the organism, the brain, which gives signals for regeneration to all our organs, itself does not renew itself at all … Hmm.

Back in the 60s of the last century, Joseph Altman discovered neurogenesis (the birth of new neurons) in the thalamus and cerebral cortex. The scientific world, as usual, reacted to this discovery very skeptically and forgot about it. In the mid-80s, this discovery was "rediscovered" by another scientist - Fernando Notteboom. And again silence.

But since the end of the 90s of the last century, full-scale studies of our brain have finally begun.

At the present moment (in the course of the latest research), several discoveries have been made. It has already been reliably established that the hippocampus and the olfactory bulb, nevertheless, regularly renew their cells. In birds, lower vertebrates and mammals, the rate of emergence of new neurons is quite high. In adult rats, approximately 250,000 new neurons are formed and replaced within a month (this is approximately 3% of the total number).

The human body also renews the cells of these parts of the brain. It has also been established that the more active the physical and brain activity, the more actively new neurons are formed in these areas. But still under study. We wait, sir …

Over the past 20 years, science has made huge strides in studying our nutrition and the dependence on it for our health. Finally, we found out that proper nutrition plays an important role in the proper functioning of organs. It has been reliably found out - what we need to eat and what is not worth eating if we want to be healthy. But in general? What comes out in general? And it turns out that "in detail" we are renewed without stopping, all our life. So what makes us sick, grow old and die?

We fly into space, think about the conquest and colonization of other planets. But at the same time, we know so little about our body. Scientists, both in ancient times and now, have absolutely no idea why, with such a huge capacity for renewal, we are aging. Why wrinkles appear and muscle condition worsens. Why we lose flexibility and our bones become brittle. Why do we become deaf and stupid … Nobody, as before, can say anything intelligible.

Some people say that aging is in our DNA, but this theory has no evidence base to support it.

Others believe that aging is inherent in our brain and psychology, that we, as it were, force ourselves to grow old and die. That in our subconsciousness there are aging programs. Also just a theory without any proof or confirmation.

Still others (very recent theories) believe that this is due to the "accumulation" of certain mutations and damage in mitochondrial DNA. But why there is an accumulation of these damages and mutations, they do not know.

That is, it turns out that, contrary to the theory of evolution of comrade Darwin, cells, renewing themselves again and again, resume a deteriorated version of themselves, instead of an improved one. Strange …

Optimistic "alchemists" believe that we are endowed with the elixir of youth from birth, and there is no need to look for it on the side. He is within us. You just need to choose the right keys to our body and learn how to properly and fully use your brain.

And then our body will be, if not immortal, then very, very long-lived!

Let's feed our body properly. We will help him a little, or rather, we will not interfere with him with all sorts of poisons, and in return it will thank us with good work and a long, HEALTHY life!