The human body is a unique object for research, which is still not fully understood. Scientists are constantly faced with unusual processes, making new discoveries. And since new technological opportunities appeared to study the body in more detail, scientists are increasingly finding amazing and incredible factors. Moreover, some of the discoveries are hard to believe. For example, it was proved that some parts of the body grow throughout a person’s life, and it was also possible to see and evaluate vital processes. The experimental results are staggering.
What is growing
An unusual feature of our body is that some parts of the body grow in a person throughout life.
It is believed that up to twenty years a person grows up completely - during this period puberty is completely completed, hormonal changes are completed in the body. In girls, the process of completing growth ends earlier than in boys. This is due to earlier puberty. And what does a person’s whole life grow, what organ?
Scientists have proven that throughout life, a person’s ears and nose continue to grow. If we compare the elderly with their photographs at a young age, the difference will be obvious. And what’s growing throughout a person’s life, what parts of the body? With intense physical exertion, there is an increase in the feet and hands. Growth is slow, only 0.2 mm per year. Although some believe that once waking up, they will have a long nose. Do not worry, this is only possible in fairy tales.
Hair and nails
Knowing that a person’s whole life is growing, the question arises, but what about hair and nails? It is proven that they grow even after death. Indeed, they continue to grow for a long time after death.
Scientists have also discovered many incredible facts that are worth knowing about:
- Facial hair grows faster than in other parts of the body. It is proved that if you do not shave a man, then in his whole life he will grow a beard longer than 30 meters.
- Each child is lost up to a hundred hairs - the exact amount depends on gender, age, nutrition and some other indicators. If you lose more than 100 hairs per day, you should consult a doctor. This is considered a pathology.
- One hair can withstand up to 100 grams of weight.
- Hair lives from 3 to 7 years.
- With baldness, so that others notice it, it is necessary to lose half of the hair.
Nerve cells
Not so long ago, scientists made a sensational discovery by publishing new information about which organ a person has been growing all his life. It includes a nerve, or rather, nerve cells.
For a long time, it was believed that nerve cells do not recover, but scientists were able to prove that they not only recover, but even continue to grow throughout the life of the human body.
Interesting facts about the brain
For many years, scientists have researched and continue to study the brain activity of man and the brain itself. Over the years, they managed to find out a lot of very interesting facts.
- The brain capacity is huge, and can reach up to 1000 terabytes.
- The brain weighs two percent of the total body weight, but it consumes a fifth of the oxygen entering the body.
- The brain is completely insensitive to pain. With strong bumps, bruises, pain occurs in the surrounding tissues, and the brain itself does not transmit pain impulses.
- The 4/5 brain is made up of water.
Internal organs
Knowing which organ a person has been growing all his life, you start to wonder, what else is interesting and unusual in our body?
The largest organ in the human body is the small intestine. If you straighten it, then it will be four times larger than our body. But the blood vessels are the longest organ. In the human body is more than one hundred thousand kilometers of blood vessels.
Another unusual fact is the reserves of excessive reliability. If a person removes the spleen, stomach, lower and upper limbs, one lung, 80% of the intestines, one kidney, all the organs of the groin and pelvis, then the person will live. True, such a life cannot be called pleasant, although the absence of these organs is not fatal.
Organism's functions
A person’s nose grows all his life, but this is not the only interesting fact about the respiratory system. Few people know that when sneezing, air moves at a speed of over 160 kilometers per hour, and during coughing, almost at a speed of 100 km / h. And these are not the only facts about our body.
- Women blink more often than men twice.
- So much saliva is released in a person’s oral cavity throughout his life that two pools can be filled.
- The concentration of hydrochloric acid in the stomach is so high that it can corrode not only food, but also thin steel objects.
Our feelings
Like a nose, a person’s ears grow all his life. Only few people know that after a hearty meal, hearing loss decreases for a short period of time. And scientists have proved that:
- Our taste buds are influenced by saliva. If it does not exist, then it will not be possible to discern the taste of dishes. You can even conduct an experiment: dry your tongue with a napkin and immediately try to eat something, the taste will be somewhere far away at best.
- The sense of smell in women is more developed than in men.
- The nose is able to distinguish more than 50,000 different smells.
- Absolute vision has only 1/3 of the world's population.
Other facts
During studies of the human body, scientists put a variety of experiments. They know for sure that:
- If the bedroom is cold, then there is a good chance of a nightmare.
- The human body can produce so much heat in 30 minutes that it is enough to boil two liters of water.
- A person cannot tickle himself, since the brain knows where his hands are and in what place to expect tickling.
- In addition to unique fingerprints, a person has a unique tongue print.
- The iron contained in the body is enough to make a ten-centimeter nail.
- More than 600,000 particles of skin fall from our bodies every hour.
Now you know what part of the human body grows all his life, and what are the characteristics of the body. And finally: the life expectancy of a right-hander is nine years longer than left-handed people. This is largely due to the fact that most mechanical devices are not adapted for the latter. And another fact about animals - only koalas have unique fingerprints, they are the same for other primates.