The most interesting facts about a person: anatomy, physical capabilities, unusual talents. Interesting facts about the structure of a person and his body

The human body is a complex and intricate system that has been studied by the best minds for several millennia. And this is an extremely interesting fact, because, despite this, our body is able to surprise even doctors, not to mention people without deep anatomical knowledge.

Brain

The impulses from the receptors to the brain travel at an astonishing speed of 275 kilometers per hour.

Our brain needs energy to work, commensurate with the energy of an ordinary light bulb.

The electronic equivalent of the memory capacity of the human brain can reach thousands of terabytes.

About 20% of the air from the blood stream goes to the brain.

The brain is more active at night when we are sleeping than during the day when we are awake.

The higher the intelligence, the more dreams you see.

Neurons and brain tissue are capable of regeneration throughout our lives.

Different types of neurons transmit information at different rates.

The brain is unable to feel pain, it lacks pain receptors.

Brain tissue is four-fifths fluid.

Nails and hair

Women's hair is, on average, twice as thin as men's, and hair thickness and coarseness vary by race.

Beards and mustaches grow faster than all other hairs.

The average hair is capable of supporting the weight of a hundred-gram bar of chocolate.

Toenails grow 4 times slower than fingernails.

Every day a person drops from fifty to a hundred hairs.

Blondes have the most hair, but they are thinner.

The nail on the middle finger grows the fastest, probably because this finger is the longest.

There is a lot of hair on the human body, as much as in our closest primate relatives, just not all of them are so clearly visible.

One hair can remain in place for an average of three to seven years.

Human hair decomposes so slowly that it is virtually indestructible.

Before baldness becomes noticeable to others, a person loses more than 50% of the hairline.

Internal organs

The heartbeat generates enough pressure for blood to flow over a distance of 9 meters.

The small intestine is the largest internal organ in the human body.

The surface area of ​​one human lung is approximately one-fifth of a football field.

Stomach acid is capable of dissolving thin blades.

The total length of the human circulatory system is 96,500 kilometers. For comparison: the circumference of the Earth is only 40,000 kilometers.

The stomach lining is renewed every three to four days.

The heartbeat of women is faster than that of men.

Scientists have counted about 500 useful functions that the liver performs.

The diameter of the aorta is the same as the diameter of the garden hose.

The left lung is slightly smaller than the right due to the heart on the left side.

A person is able to survive without a huge part of his internal organs, for example, the spleen, 75% of the liver, 80% of the intestines, stomach, kidney, lung and all organs of the pelvic region. Of course, it is not easy to live without most of the internal organs, but it is possible.

The adrenal glands change their volume throughout a person's life.

Basic body functions

The flow of air during a sneeze moves at a speed of 160 kilometers per hour.

When coughing, the air speed is reduced to 95 km / h.

A full bladder is the same size as a large grapefruit.

Almost 75% of stool is water.

Women blink twice as often as men.

Earwax is produced to keep your ears healthy.

There are about five hundred thousand sweat glands on the feet, which are capable of secreting half a liter of sweat daily.

Over a lifetime, a person secretes so much saliva that it can fill two Olympic pools.

The average person experiences bouts of flatulence about 14 times a day.

Reproduction

The largest cell in the human body is the egg, and the smallest is the sperm.

Teeth begin to appear six months before the baby is born.

Fingerprints appear in the embryo at three months.

Pregnant women at the beginning of pregnancy have frequent dreams about frogs, house plants and worms.

Almost all babies are born with blue eyes.

With a comparative weight ratio, a newborn baby is stronger than a bull.

One in two thousand babies is born with an already grown tooth.

Each of us spent half an hour of our existence in the form of a single-celled creature.

Most men get erections several times a night.

Sense organs

After a hearty meal, your hearing becomes worse.

About one third of humanity has perfect vision.

Unlike men, women have a more developed sense of smell.

If a product cannot dissolve in saliva, we cannot taste it.

A person is able to remember about 50 thousand different smells.

Even the slightest noise causes the pupils to dilate slightly.

Each person has their own scent, which is completely unique; only twins do not have it. The smell of identical twins is identical.

Old age and death

The ashes of a cremated body weigh an average of 4 kilograms.

Nails and hair do not grow after death, they appear longer due to the fact that the muscles and skin dry out.

By the age of 60, people have lost about half of their taste buds.

The size of the eyes does not change at all, but the nose and ears do not stop growing until death.

By the age of 60, more than half of men and slightly less than half of women begin to snore in their sleep.

The person retains consciousness for 20 seconds after decapitation.

Disease

Most often, according to statistics, heart attacks happen on Monday.

A person can survive without food longer than without sleep.

An ordinary, mild sunburn can severely damage blood vessels.

Nearly 90% of diseases can be either caused or complicated by stress.

Muscles and bones

For a smile, you need to use 17 muscles, and for a frown, 43.

In the morning we are 1 cm taller than before going to bed, due to the fact that the upright position puts pressure on the spine.

At birth, the number of bones is 300. Over time, some of them grow together, and in an adult there are fewer of them - 206.

The hardest bone is the jaw.

The strongest muscle in the human body is the tongue.

To take one step, a person must use 200 different muscles.

A tooth is the only part of the body that cannot heal itself.

It takes twice as long to lose newly acquired muscle as it does to gain muscle mass.

Bone is stronger than some steel alloys.

Of the 206 bones in the human body, 52 are on the feet.

Cells

About 16 million bacteria live on every square centimeter of skin.

The outer skin of a person is renewed every 27 days.

The human body makes 300 billion cells every day.

In our body, about 300 million cells die every minute.

We shed about half a million dead skin particles every hour.

A person's tongue print is as unique as a fingerprint.

There is enough iron in the human body to fuse a nail 7 centimeters long.

The most common blood type is the first. About half of the world's population has this type of blood.

The color of the lips is so bright because the capillaries in them are located right under the thin layer of skin.

Miscellaneous

The size of the baby's head is 25% of its entire body length. The size of an adult's head is only one-eighth of the height.

The colder it is in the bedroom, the more likely you are to have a nightmare.

Tears and mucus contain an enzyme that can break down the membranes of many bacteria, thus protecting us from infection.

In half an hour, the human body produces enough energy to bring 4 liters of water to a boil.

Ears produce more sulfur when we are scared.

You can't tickle yourself.

The span of the arms usually matches the height.

Humans are the only representatives of the animal kingdom capable of crying over emotions.

According to statistics, right-handers live 9 years longer than left-handers.

Women burn calories more slowly than men.

Koalas and primates also have unique fingerprints.

The depression between the nose and the upper lip is called the nasal groove. For what it is to us, scientists have not determined.

Since ancient times, people have tried to understand the mystery of man. Scientists, philosophers, representatives of art and culture still cannot explain the unique creation, which is Homo Sapiens. In this article, we want to tell you the most interesting facts about human structure... You will see that even on a biological level, we are incredibly precise and intelligent.

But first I would like to remind you that two sciences are engaged in the study of a person at the biological level: physiology and anatomy.

In principle, any facts about a person have always attracted the attention of thinking individuals. After all, self-awareness is the first sign of a highly developed intellect. Well, okay, let's move on to the topic.

Everyone knows that memory largely determines intelligence and, in general, the level of development. How much memory does the brain have? 1000 terabytes. For comparison, we can only add that one terabyte is 1000 gigabytes. In other words, our memory averages 1 million terabytes.

The brain accounts for 2% of the weight of the whole body. However, it consumes as much as 20% of all oxygen that we inhale through the lungs.

There is a scientific opinion that a person with a high level of intelligence has more dreams. Like this!

It is interesting that all computers in the world cannot compete with the brain in the number and quality of operations processed per unit of time. But it consumes only as much energy as a 10-watt light bulb.

At night, during sleep, the brain is more active than during the day.

It used to be thought that nerve cells do not regenerate. However, recent studies have shown that they are not only recovering, but also constantly evolving.

It is reliably known that the study of foreign languages ​​actively stimulates the brain. Sports exercise has the same effect. Therefore, in order to avoid senile dementia in highly developed countries, elderly people attend foreign language courses.

An interesting fact is that the brain itself does not feel pain. If a person is hit on the head, then he will feel it only due to the structure of the skull, which is enveloped by sensitive tissues. This is probably why the gray matter needs such a shell, because it, without feeling pain, could not take care of itself!

By the way, water makes up four-fifths of the volume of our brain, can you imagine? I must say that this puts scientists at a real dead end, since it is simply impossible to come up with reasonable or logical explanations for the fantastic abilities of the brain.

Hair and nails

Our hair grows at different rates depending on where it is located. The fastest growing cover on a man's face. If he never shaves, then his beard will be about 30 meters. True, this happens extremely rarely because the hair, reaching a certain length, begins to split. So a very long beard is rather an exception.

Our hair falls out all the time. On average, we lose about 100 of them in one day. But this indicator depends on many factors: gender, age, season, etc.

An interesting fact is that women's hair, with a few exceptions, is almost twice as thin as men's.

On average, one hair is capable of supporting a weight of 100 grams.

Our body has about as much hair as a chimpanzee. Only in primates, they form wool, while in humans they are thin and short.

It is believed that one hair on the head lives from 3 to 7 years. Then it gives way to the younger generation.

How do you know that you have started to go bald? In order for this to become noticeable from the outside, at least half of the vegetation on the head should be lost.

And this is a very interesting fact. Fingernails grow at different rates. It is noticed that the longer the finger, the sooner they grow. That is, the middle finger naturally has the longest nail on the hand, and the little finger, on the contrary.

Here it should be added that the nails grow 4 times slower on the legs than on the hands.

Internal organs

In the fair sex, the heart beats 10 beats more often than in the stronger sex.

Do you know the largest internal organ? This is the small intestine. Its length is about 4 human height. That is, if your height is 170 centimeters, then multiplying this number by 4, we will determine the size of the small intestine: 6 meters 80 centimeters.

Few people realize that most of the processing of food does not take place in the stomach itself, but directly in the small intestine.

Interestingly, all elements of our body are supplied with oxygen thanks to the circulatory system, and only the cornea of ​​the eye has no blood supply. It uses oxygen directly from the air entering the eye.

Blood is red only due to the presence of hemoglobin in it.

Of course, you can guess that there is acid in the stomach that breaks down food. So the concentration of hydrochloric acid (and it is precisely called that) is such that the razor blade can freely dissolve.

The stomach has a lot of nerve endings, which is why scientists are conventionally called the "second brain".

If all blood vessels are stretched in one line, then it will be 100 thousand kilometers. In it is mentioned that the circumference of our planet is 40 thousand kilometers. That is, with a rope made of vessels, you can wrap the earth two and a half times.

Have you ever wondered, without which internal organs we could exist? So, if a person's stomach and spleen are removed, only one-fourth of the liver, 20% of the intestines, one kidney, one lung are left, and almost everything is removed from the pelvic region, he can live. Of course, this will not be a full life, but still better than not existing at all!

The heart creates such pressure in the body that blood from the artery can spill more than 7 meters.

The liver, despite the seeming inconspicuousness of its activity, performs up to 500 important functions in our body.

Interesting facts about muscles and skeleton

When you smile, about 17 facial muscles contract. But when we frown - 43 muscles. It turns out that it is much easier for us to smile than to frown.

Many even children know that in the morning we are one centimeter taller than in the evening. This happens because during the day the cartilage of the spine is compressed, as it were, and during the night they come to their standard position.

Scientists have proven that the strongest muscle is the tongue. Interesting!

The tibia is the strongest in the skeleton. She can withstand more than four tons, and the next one is femoral - her indicator is 3 tons.

The heaviest bone is the jaw.

The teeth are the only organ that cannot be restored.

If reading the previous fact, you have a misunderstanding, then let us explain: a tooth is not a bone, but an organ.

At birth, a child has about 300 bones, and when he grows up - only 206. This is due to the fact that many bones grow together with age.

Body functions

When we sneeze, air bursts out of the mouth at a speed of 160 kilometers per hour, and during the coughing process - 100 kilometers per hour.

It is impossible to sneeze with your eyes open.

It is reliably known that women blink almost twice as often as men.

The bladder volume of an adult is approximately 400 milliliters. Although, of course, some "talented" people can tolerate up to 1 liter!

How much saliva do you think is secreted in your mouth every day? If it were possible to collect the saliva that you have excreted throughout your life, then it would be possible to fully fill two pools with it.

Feelings

Interestingly, after a hearty dinner, our hearing becomes a little dulled.

It is believed that two-thirds of the world's population does not have one hundred percent vision. And in the age of computerization, this figure is likely to begin to increase.

If there was no saliva in the mouth, we would not be able to taste any tastes at all.

Wives have a more sensitive sense of smell than men, and every fiftieth inhabitant of the planet practically does not distinguish smells.

In general, the nose is able to distinguish up to 50 thousand smells and their shades.

Various interesting facts

When a person turns 60, they slowly begin to lose up to 50% of their taste buds.

Ears and nose always grow from birth.

The largest human cell is the ovum, and the smallest is the sperm.

The fetus's teeth begin to grow after the third month of pregnancy. Already during this period, unique fingerprints are determined.

With age, every second inhabitant of the earth begins to snore in his sleep.

Every 25-30 days, human skin is completely renewed.

About 600 thousand skin particles fall off the body every hour.

Fingerprints are unique to all people. Language has the same property.

This is an interesting fact for adults. A man gets an erection every hour and a half. But!

It's no secret that iron is present in the body. But did you know that it is enough to make a nail 10 centimeters long?

If the bedroom is cold while you sleep, chances are good that you will be dreaming of something scary.

The average person generates so much heat in one hour that it would be enough to boil two liters of water.

When you are stressed or afraid of something, then there is more wax in your ears than when you are calm.

Interesting, but tickling yourself is impossible. Our senses are too smart to react to that.

It is believed that the span of the arms is equal to the height. You can check this fact yourself at home.

No animal in the world can cry out of excess of feelings. Only Homo Sapiens is endowed with such a gift.

Lefties live several years less than right-handers. But this is not a genetically determined relationship, but simply most things are adapted specifically for right-handers.

In addition to humans, primates and koalas have unique fingerprints.

In the end, I want to say one important thing. It has been proven that 90% of illnesses are due to stress. Therefore, dear friends, keep calm, as Carlson said, live long and do not get sick!

4 years ago, 21:38

There is a great variety of "miracles" in the human body. Here are just a few numbers and facts about entertaining human anatomy and physiology.

• The expression "scared to death" has its own rationale. The defense mechanisms of our body in case of danger add adrenaline to the bloodstream, which leads to improved blood supply to the muscles, dilated pupils and other "improvements." However, adrenaline in large quantities is toxic to the body, therefore, in some cases, it can be fatal.
• Research has shown that in Germany, the number of heart attacks increases dramatically on the days when the national team plays in the World Cup. And this is quite logical.
• Breast cancer is not an exclusively female disease, although men also suffer from it to a lesser extent. On average, there is one “male” case for every 100 “female” cases.
• The size of the left breast in 90% of women differs from the size of the right one. In most cases, this asymmetry is small, but sometimes it can reach such a magnitude that it brings significant moral and physical inconvenience to the owner.
• Every day 1.500.000 skin particles fall off from us, which accumulate in washcloths, together with staphylococcus, which is the main "skin" bacterium and can cause big trouble if it gets inside the body.
• About three million microscopic creatures live on a square centimeter of our skin.
• Our body produces enough heat in half an hour to boil a liter of water.
• A piece of skin the size of a brand, taken from the foreskin, grows in three weeks so that the resulting grown skin is enough for three basketball courts.
• The female ovaries produce nearly half a million eggs, with only about 400 having a chance of fertilization.
• The saliva in our mouth is alkaline. If it were not for it, food residues and microorganisms in the oral cavity would quickly form an acidic environment that is extremely dangerous for the teeth.
• The dirtiest and most diverse place in our body with microorganisms is the mouth. More than 700 SPECIES of bacteria live in it, while their set, for example, among Americans and Swedes, is quite different.
• A full stomach stretches to the size of a softball (up to 10 centimeters in diameter).
• An adult has more than 5,000,000 hairs on the surface of the skin - the same number as a gorilla.
• A man's testicles produce 10 million sperm cells every day.
• If you sneeze hard enough, you can "earn" a crack in the rib. If you try to hold back the sneeze, the result will be even more sad - a rupture of a vessel in the head or neck.
• Pubic lice are most often found on the pubis itself, but in some cases, these cute animals can "frolic" on the hips, chest and even on the eyelashes.
• The human stomach is forced to renew its surface every day to replace the damaged one from gastric juice, that is, hydrochloric acid.
• A person's gastric juice is aggressive enough to completely dissolve a razor blade in a week.
• The largest organ of a person is his skin. This body covers an area of ​​up to two square meters and is constantly being updated. Over a lifetime, a person produces about 17 kilograms of skin.
• In the morning we get out of bed with a height of almost a centimeter more than the "evening". During the day, the human spine is "trampled down" again, the gaps between the vertebral discs are again reduced, and growth is restored.
• The pressure that the heart creates in the circulatory system can raise the blood to a height of up to 10 meters.
• Surprisingly, our brain works no less in a dream. and often more than during a daytime active lifestyle.
• Globally, attention deficit hyperactivity disorder (AD / HD) is diagnosed on average in every tenth child.
• Every day we lose 85,000 nerve cells, and only 50 new ones are created.
• Babies do not have knee caps; instead, there is a special cartilage on the knees. Only by 3-5 years does it harden (ossify), turning into a patella.
• A person can memorize up to 50,000 different smells.
• Out of 2,000 babies, one is born with teeth or similar formations. In some cases, they "dissolve" on their own, sometimes they are replaced by permanent ones by 6 or 7 years.
• A person can live without food for several weeks, and without sleep he will not live even 12 days.
• Our brains stop growing in size after age 18.
• Among the people using the services of online marriage agencies, at least a third are already married.
• As a result of one survey conducted in the United States in 2004, it turned out that 60% of men agree to have sex for money, that is, to engage in prostitution, while 16% of them are satisfied with an amount of $ 150 or less.
• Although the penis is not a bone, it can be broken. This usually occurs when the penis is in an erect state and force is applied to it in an unusual direction. At the same time, a crackling sound can be heard, after which the penis swells and remains in a "broken" shape. This can be corrected most often only by surgery.
• 70% of people pick their noses, thirty of them do not interrupt this exciting process even while eating.
• Only one tenth of the cells in our body are actually ours. The remaining 90% are microorganisms that live inside us and on our surface.
• At the beginning of our life, any of us consisted of a single cell for about 30 minutes.
• A smoked cigarette shortens the life of the smoker by 11 minutes.
• The quarter of a million pores on our feet produce nearly a quarter of a cup of sweat every day.
• We produce enough saliva to fill two swimming pools in a lifetime.
• Our liver is the largest gland (weighing on average 1.2-1.5 kilograms), and it performs at least 500 vital functions, and in addition, it has the ability to regenerate. If a fragment is cut off from the liver, it “grows back” over time to its original size.
• People living in the city produce more earwax in their ears than their rural compatriots.
• Believe it or not, fresh urine is cleaner than saliva or the surface of our skin. The urine of a healthy person is practically free of harmful bacteria.

Man is a unique creation of nature. The possibilities of his body are endless. Unfortunately, not everyone is aware of this, naively believing that the greatest achievement is walking upright and using a computer. do not cease to excite the minds of the inhabitants of the Earth. This allows you to better know your abilities and strive for something more. Most people do not even suspect what processes occur every second in every cell of the human body. For example, the speed of a nerve impulse that the brain sends is 274 km / h. And every minute 50 thousand skin cells are replaced with new ones. Is it possible to imagine that in a lifetime the human heart pumps a volume of blood equal to almost 220 million liters?

A long time ago it was decided to write down interesting facts about a person, in particular his unusual abilities, in a special book, which was named by an Irish company. It was "Guinness" that ordered the publication of the first copy back in 1955. It turned out that it is in great demand, and in the near future the circulation has grown to the millions. Now this is one of the names which is familiar to every person. Anyone who has extraordinary capabilities, appearance, physical data can get on its pages. Many countries have established their own record books.

The most interesting facts about a person are yet to be learned. After all, the body has not been fully studied, every time scientists discover something new and unusual. For example, no one thinks, and in the world there are no two absolutely identical languages. Each fingerprint is as unique as the fingerprint. And during such a familiar daily action as sneezing, air bursts out of the mouth at a speed of at least 165 km / h. That is why it is so important to cover your mouth with a handkerchief, otherwise bacteria will appear at a distance of 5 meters around.

Studying interesting facts about a person, you can find out that the lungs of a person pass through about 10 thousand liters of air every day, and this can be compared with It has long been known that smiling is useful, but it turns out that it is also easier than frowning. After all, this action requires half the muscles.

The most interesting facts about a person are related to their brain. So, he is able to generate in one day as many electrical impulses as not under the control of all existing telephones in the world. And in one second, about 100 thousand various chemical reactions take place there. A newborn person has 14 billion brain cells. This figure does not increase over a period of life, but, on the contrary, decreases. This happens after 25 years. A small weight of the total body weight (only 2%) does not prevent the brain from consuming more than 20% of the entire body. This organ does not rest even in sleep. The brain, like any muscle, can be trained. Solving difficult problems, communicating with smart people and gaining new knowledge will help in this.

It is simply impossible to list all the interesting facts from people's lives. No book can fit them on its pages. It only says that you need to know yourself and improve yourself every day.

Brain power converted into heat is similar to that of a ten-watt
light bulbs
The approximate capacity of our memory ranges from 3 to 1000 terabytes.
The capacity of the entire British National Archives is 70 terabytes
The brain consumes one fifth of all oxygen, while weighing only 2% of the mass
of our body
Surprisingly, our brain works no less in a dream. and often more than
during daytime active lifestyle
Scientists claim that the more IQ a person has, the more dreams he has.
According to modern research, nerve cells in our body grow during
time of our whole life. It was previously believed that the number of nerve cells with
decreases with age and does not recover
The speed of propagation of information in the neurons of our body is different and
depends on the type of neurons. Speed ​​range - from 0.5 to 120 meters per second
The brain itself is not sensitive to pain. When you hit your head, pain is felt
thanks to the tissues surrounding the skull.
Four-fifths of our brains are water

Hair, nails

Of all the hairline, facial hair grows the fastest. If
a man will not shave during his life, he will grow a beard long
more than 30 meters
We lose 60-100 strands of hair every day. The exact number depends on the age,
nutrition, gender and season
Women's hair is twice as thin as men's
One human hair can support up to 100 grams of weight.
The fastest growing nail is on the middle finger. It is noticed that the longer
finger, the faster the nail grows on it. This speed is the smallest on the little finger.
The same amount of hair grows on the surface of our body as in chimpanzees, only
here they are thinner and shorter, because of this they are less noticeable
Blondes have almost one and a half times more hair (up to 150,000) than
brunettes (100,000), and twice as many as redheads (80,000)
Fingernails grow several times faster than toenails.
The lifespan of a hair on your head is 3 to 7 years.
In order for others to notice that you have started to go bald, it is necessary
lose half of the hairline.
Human hair is practically not destroyed. It can only be burned, but to
it is insensitive to water, cold and many aggressive substances.

Internal organs

The largest organ in our body is the small intestine. If you spread it all
intricacies, she will be four times our height
The blood pressure created by our heart can raise it to a height of 10
meters
The concentration of hydrochloric acid in the stomach is such that it can corrode the shaving
the blade, not just the pizza you eat
As a consequence of the previous point, the cells lining the walls of the stomach and
directly in contact with gastric juice, renewed every 3-4
of the day
The total length of blood vessels in our body reaches 100,000
kilometers
The total area of ​​our lungs (all the smallest vesicles - alveoli) is comparable to
tennis court area
The heart rate in women is on average lower than that of men, due to the lower
body weight, and as a result, less blood volume that needs
"pumping"
The liver is one of the most complex and stressed organs in our body.
The number of its functions reaches several hundred, including, for example,
production of bile, utilization of red blood cells, synthesis of many proteins and
detoxification
The size of the heart reaches two folded fists, and the diameter of the largest
vessel - the aorta is comparable to the diameter of a garden watering hose
The left lung is slightly smaller than the right due to the fact that it is necessary to free up space
for heart
The human body is made with a large margin of redundant reliability -
a person will survive if his stomach, spleen, three quarters of the liver are removed,
80% of the intestines, one kidney, one lung, as well as almost all organs from
pelvic and groin area. Of course, such a life cannot be called pleasant, but
removing these organs is not fatal

Body functions

The air exhaled during sneezing moves at a speed of more than 160
kilometers per hour.
The same air in the process of coughing spreads with a speed of slightly less
100 kilometers per hour
Some people sneeze from bright lights (so do I)
Women blink twice as often as men
The volume of the filled bladder is on average 400 milliliters,
although some people are able to "tolerate" up to a volume of one liter
Approximately 75% of all human stool is water
On the soles of our feet we have half a million sweat glands capable of
sweat up to half a liter
Throughout our life, so much saliva is secreted in our mouths that it can be filled
two swimming pools
An adult gasses about 14 times a day, even if he is sure he is not
commits this. Otherwise, they accumulate in the stomach and cause pain
Feel
Earwax isn't just an annoying misunderstanding. It lubricates and cleans
the ear canal, and also protects the delicate internal auditory organs from bacteria,
fungi and insects

Reproduction

More than 120,000,000 sexual acts are performed every day, that is, every day
about 4% of the world's population have sex. No wonder the population
The earth is rapidly increasing
The largest human cell is a female ovum, with a diameter of about
millimeter, it can be seen with the naked eye. The smallest cell -
sperm that is only slightly larger than the size of the cell nucleus
Your teeth started growing six months before birth. More precisely, they begin
special dental bumps form, which later become teeth
Most babies are born with blue eyes due to the presence of a substance in them.
melanin. Under the influence of ultraviolet radiation, it decomposes, and begins
"show through" the real eye color
In relative terms, an infant is a very strong
creature. If we increase it proportionally to the size of, say, a bull, then in
a bull will have no chance to fight such a child
One child in every 2000 already has at least one tooth at birth.
It can be either a milk tooth or a pre-milk tooth, which will fall out,
when normal baby teeth will climb
Fingerprints begin to appear on the baby six months before birth, and their
the drawing remains constant throughout his life
Each of us half an hour of our life was a single-celled organism
(when the sperm has fused with the egg, before the first division)
In men, in a dream, an erection occurs on average every hour. This is caused by the influx
blood and testosterone production, and is normal for REM sleep
(REM sleep)

After a hearty, plentiful meal, our hearing becomes for a while
less acute
Only one third of the world's population has 100% vision
Without saliva, we cannot taste food. Try to dry your tongue
with a napkin or cotton wool, and then try to taste the food
Women have a finer sense of smell than men. Moreover, each
the fiftieth inhabitant of the Earth does not distinguish smells at all
Our nose is capable of distinguishing 50,000 different odors
Even the smallest unexpected noise can cause pupil dilation and
focus change. That is why representatives of the exact professions (surgeons,
watchmakers) don't like it so much when it's noisy.
Each person has their own unique smell, caused by a combination of genetic
factors, environment, diet and items used
hygiene.

The weight of the cremated human remains is on average 4 kilograms
Upon reaching the age of 60, a person loses about half of their taste buds.
Throughout life, our eyes practically do not change in size, in
unlike ears and nose, which grow throughout life
By the age of 60, 1 in 2 people snore
A child's head is one quarter of its total height. Aged 25
years, its height is already equal to one eighth of the body length

The most dangerous day in terms of heart attacks is Monday. By
a study in Scotland found that the risk
die of a heart attack on Monday 20% higher than any other day
weeks
A person needs sleep much more than food. If without food if available
water can hold out for a month or even two (depending on the complexion and
other factors), the longest recorded period without sleep is 11
days
Moderate sunburn damages the vessels below the surface
skin from which they "recover" for several months. Use
sunscreen!
More than 90% of all diseases are caused or significantly exacerbated by stress

Muscles and skeleton

With a smile, 17 muscles work, and with a frown, 43 muscles.
it is more profitable and easier for our face to keep a smile
In a newborn, the skeleton consists of 300 bones, with age, some of them
grow together, only 206 remains
Our height in the morning is one centimeter more than in the evening, which is associated with compression
spinal cartilage throughout the day
The strongest muscle in our body, given its size, is the tongue
The strongest bone in the human body is the jaw
In order to take one step, our body uses about 200 muscles. BUT
we take about 10 thousand such steps every day +
The only organ in our body that cannot regenerate is teeth.
The outer part of the tooth is enamel, that is, non-living tissue, and cannot
self-repair by giving work to the dentist
Bone is stronger than some types of steel. Of course, the bone is more fragile, but if
take steel of the same weight, the bone will be stronger
Of all the 206 bones in our body, 52 are in the feet.

Through a microscope

32 million bacteria inhabit every inch of our body
Human skin is renewed every 27 days on average.
3.000.000.000 cells die in our body every minute
600,000 skin particles fall off us every hour
Every day in the body of an adult, 300,000,000,000 new
cells
A tongue print, like a fingerprint, is unique to each person.
There is enough iron in our body to make a ten centimeter
nail
Our lips have an intense red color due to the large amount of
capillaries close to the skin surface. Usually the blood in them is rich
oxygen, because of this it has a red color. When we are cold, blood
vessels decrease and oxygen saturation decreases, which leads to
blue skin of the lips (and not only)

The colder it is in the bedroom, the more likely it is to have a nightmare.
Tears and mucus in the nasopharynx contain lysozyme -
antibacterial enzyme that destroys the cell walls of bacteria
In half an hour, the body generates enough heat to boil two liters of water
When a person is in a state of fear or stress, in the ears
more sulfur is produced
It is impossible to tickle yourself, because your brain "knows" where your
hands where to expect tickling and does not take into account these sensations
The span of the arms is approximately equal to the height of a person.
Man is the only creature that can cry from an excess of emotion.
In general, we are the biggest crybabies in nature.
Right-handers live an average of nine years longer than left-handers. It is not genetic
predisposition, and the result of the inability of most dangerous
mechanisms in our society for the needs of left-handers
Apart from humans and other primates, only koalas have unique prints.
fingers.