Parasites living in the human body, photos - hidden diseases with serious consequences. How to determine the presence of parasites in the human body What can live inside a person

Man is a unique creation. Until now, all the possibilities of the human body are unknown. And those that we learn about from scientific research are amazing and make you think. We have collected 103 facts about the human body that will delight and surprise you!

• The only part of the body that does not have a blood supply is the cornea of ​​the eye. It receives oxygen directly from the air.
• The human brain has a capacity of over 4 terabytes.
• Up to seven months, a baby can breathe and swallow at the same time.
• Your skull is made up of 29 different bones.
• When you sneeze, all bodily functions stop, even the heart.
• The nerve impulse from the brain moves at a speed of 274 km/h.
• One human brain generates more electrical impulses in one day than all the phones in the world combined.
• The average human body contains enough sulfur to kill all the fleas on the average dog, carbon to make 900 pencils, potassium to fire a toy gun, fat to make 7 bars of soap, and enough water to fill a 50 liter barrel.
• The human heart pumps 48 million gallons of blood in its lifetime.
• 50,000 cells in your body are dying and being replaced by new ones while you are reading this sentence.
• The fetus acquires fingerprints at the age of 3 months.
• Women's hearts beat faster than men's.
• Humans are the only creatures that sleep on their backs.
• Right-handed people live an average of nine years longer than left-handed people.
• Approximately two-thirds of people tilt their heads to the right when kissing.

• A person forgets 90% of his dreams.
• The total length of blood vessels in the human body is approximately 100,000 kilometers.
• In spring, the respiratory rate is on average one third higher than in autumn.
• By the end of life, a person remembers an average of 150 trillion bits of information.
• 80% of the heat of the human body leaves the head.
• When you blush, your stomach turns red too.
• The feeling of thirst appears when the loss of water is equal to one percent of body weight. A loss of more than 5% can lead to fainting, and more than 10% can lead to death from withering.
• At least 700 enzymes work in the human body.
• On average, a 4-year-old child asks 450 questions a day.
• In addition to humans, koalas also have unique fingerprints.
• Only 1% of bacteria cause disease in humans.
• All people on the planet can be comfortably placed in a cube with a side of 1,000 meters.
• The scientific name for the navel is umbilicus.
• The tooth is the only part of the human body that is incapable of self-healing.
• The average time it takes a person to fall asleep is 7 minutes.

• The right-hander chews most of the food on the right side of the jaw, and vice versa, the left-hander chews on the left.
• There are only 7% left-handers in the world.
• The aroma of apples and bananas helps the body lose weight.
• The length of hair on the head, grown on average by a person during his life, is 725 kilometers.
• Among people who can move their ears, only one third can move one ear.
• The average person swallows 8 small spiders in their lifetime.
• The total weight of bacteria living in the human body is 2 kilograms.
• 99% of all calcium in the body is in the teeth.
• Human lips are hundreds of times more sensitive than fingertips. A real kiss increases the pulse to a frequency of 100 or more beats per minute.
• The absolute strength of the chewing muscles on one side is 195 kilograms.
• During a kiss, 278 different cultures of bacteria are transferred from one person to another. Fortunately, 95% of them are not dangerous.
• Parthenophobia is the fear of virgins.
• Tooth enamel is the hardest tissue produced by the human body.
• If you collect all the iron contained in the human body, you get only a small screw for the clock.
• There are over 100 different viruses that cause the common cold.
• A kiss of sufficient duration is much better than chewing gum, normalizes acidity in the mouth.
• Banging your head against a wall can burn you 150 calories an hour.

• Man is the only representative of the animal kingdom capable of drawing straight lines.
• During a lifetime, human skin is replaced approximately 1000 times.
• A person who smokes a pack of cigarettes a day drinks half a cup of tar a year.
• Women blink about 2 times less than men.
• The composition of the human body includes only 4 minerals: apatite, aragonite, calcite and cristobalite.
• A real passionate kiss causes the same chemical reactions in the brain as skydiving and firing a gun.
• Men are considered dwarfs if they are under 130 cm tall, women are under 120 cm.
• Fingernails grow about 4 times faster than toenails.
• People with blue eyes are more sensitive to pain than everyone else.
• Nerve impulses in the human body move at a speed of about 90 meters per second.
• In the human brain, 100,000 chemical reactions occur in one second.
• Children are born without kneecaps. They appear only at the age of 2-6 years.
• If one of the identical twins is missing one or another tooth, as a rule, the same tooth is missing in the other twin.
• The surface area of ​​human lungs is roughly the size of a tennis court.
• On average, a person spends 2 weeks kissing in his entire life.

• Blondes grow beards faster than brunettes.
• Leukocytes in the human body live 2-4 days, and erythrocytes - 3-4 months.
• The strongest muscle in the human body is the tongue.
• The size of a human heart is approximately equal to the size of his fist. The weight of an adult heart is 220-260 grams.
• From the moment of birth, there are already 14 billion cells in the human brain, and this number does not increase until death. On the contrary, after 25 years it is reduced by 100 thousand per day. In the minute you spend reading a page, about 70 cells die. After the age of 40, brain degradation accelerates sharply, and after 50, neurons (nerve cells) dry out and the volume of the brain shrinks.
• At birth, there are about 300 bones in the body of a child; in adulthood, there are only 206 of them.
• The human small intestine during life has a length of about 2.5 meters. After his death, when the musculature of the intestinal wall relaxes, its length reaches 6 meters.
• The right lung of a person holds more air than the left.
• An adult takes approximately 23,000 breaths (and exhalations) a day.
• The smallest cells in a man's body are sperm cells.
• There are about 40,000 bacteria in the human mouth.
• There are about 2,000 taste buds in the human body.
• The human eye is capable of distinguishing 10,000,000 color shades.
• The chemical compound responsible for the ecstasy of love (phenylethylamine) is present in chocolate.
• The human heart creates pressure that is enough to raise the blood to the level of the 4th floor.
• A person burns more calories while sleeping than while watching TV.
• Children grow fastest in spring.
• More than 2,000 left-handed people die every year due to a mistake in the operation of mechanisms designed for right-handed people.
• It turns out that every three hundredth man has the opportunity to satisfy himself orally.
• A person uses 17 muscles when he smiles and 43 when he frowns.
• By the age of 60, most people have lost half of their taste buds.
• As you know, humans are animals too. However, we are the only ones who can copulate face to face.
• During a person's flight in an airplane, their hair growth rate doubles.
• One percent of people can see infrared and one percent ultraviolet.

• If you are locked in a completely enclosed room, you will die from carbon dioxide poisoning, not from lack of air.
• On average, a person spends two weeks of his life standing at a traffic light.
• According to statistics, only one person in 2 billion crosses the threshold of 116 years.
• A normal person laughs five times a day.
• The average person speaks 4,800 words in 24 hours.
• The retina inside the eye covers about 650 sq. mm and contains 137 million light-sensitive cells: 130 million rods for black and white vision and seven million cones for color vision.
• Our eyes are always the same size from birth, but our nose and ears never stop growing.
• In the morning, a person is about 8 millimeters taller than in the evening.
• The focus muscles of the eye move 100,000 times a day. For the leg muscles to make the same amount of contractions, you need to walk 80 kilometers (50 miles) a day.
• The average person produces almost a liter of sweat per day.
• A cough is an explosive charge of air that moves at speeds up to 60 miles per hour.
• According to German researchers, the risk of a heart attack is higher on Monday than on any other day of the week.
• Bone is five times stronger than steel.
• You can't sneeze with your eyes open.
• Ingrown nails are a hereditary trait.
• A normal person will die from complete lack of sleep faster than from starvation. Death will occur in about 10 days without sleep, while starvation will occur in a few weeks.
• The average life expectancy is 2475576000 seconds, we speak an average of 123205750 words, we have sex 4239 times, we release 60 liters of tears.

Watch the video of Yitzhak Pintosevich - about the unique Program ""!

Nature ordered the following proportions in the structure of the human body:
the length of four fingers is equal to the length of the palm, four palms are equal to the foot, six palms are one cubit, four cubits are the height of a person.

Four cubits are equal to a step, and twenty-four palms are equal to the height of a man.
If you spread your legs so that the distance between them is 1/14 of a human height, and raise your hands so that the middle fingers are at the level of the top of the head, then the center point of the body, equidistant from all limbs, will be your navel.

The space between the legs apart and the floor forms an equilateral triangle.
The length of the outstretched arms will be equal to the height.

The distance from the roots of the hair to the tip of the chin is equal to one tenth of human height.
The distance from the top of the chest to the top of the head is 1/6 of the height.
The distance from the upper chest to the roots of the hair is 1/7.
The distance from the nipples to the crown is exactly a quarter of the height.
The greatest width of the shoulders is an eighth of the height.
The distance from the elbow to the fingertips is 1/5 of the height, from the elbow to the armpit is 1/8.
The length of the entire arm is 1/10 of the height.
The beginning of the genitals is located just in the middle of the body.
Foot - 1/7 of the height.
The distance from the toe of the foot to the patella is equal to a quarter of the height, and the distance from the patella to the beginning of the genitals is also equal to a quarter of the height.
The distance from the tip of the chin to the nose and from the roots of the hair to the eyebrows will be the same and, like the length of the ear, equal to 1/3 of the face.

The scientific name for the navel is umbilicus.

A person who smokes a pack of cigarettes a day drinks half a cup of tar a year.
The surface area of ​​human lungs is roughly the size of a tennis court.
The right lung of a person holds more air than the left.
An adult human takes approximately 23,000 breaths (and exhalations) per day.

Man is the only representative of the animal kingdom capable of drawing straight lines.
When a person smiles, 17 muscles “work”.
The surface of the lungs is about 100 square meters.
Human DNA contains about 80,000 genes.
Men are considered dwarfs if they are under 130 cm tall, women are under 120 cm.
Leukocytes in the human body live 2-4 days, and erythrocytes - 3-4 months.
The names of the fingers of the French: pus, index, major, anulare, oryculaire.
Each human finger bends about 25 million times during its lifetime.
The size of a human heart is approximately equal to the size of his fist.
The weight of an adult heart is 220-260 g.
The composition of the human body includes only 4 minerals: apatite, aragonite, calcite and cristobalite.
The human brain generates more electrical impulses in a day than all the phones in the world combined.

The average human brain weighs 1.4 kilograms, while the size in this case really doesn’t matter: Einstein’s brain weighed 0.2 kg less than the norm, so if a friend’s hat is small for you, don’t flatter yourself - it’s not a fact that you are smarter than him .
Despite the small volume and the fact that the brain is 90% water, it consumes 25% of all oxygen and sugar needed by the body.
The phenomenon in which a person loses the ability to see from strong light is called "snow blindness".
The total weight of bacteria living in the human body is 2 kilograms.
In the human brain, 100,000 chemical reactions occur in one second.
Children are born without kneecaps. They appear only at the age of 2-6 years.
From the moment of birth, there are already 14 billion cells in the human brain, and this number does not increase until death. On the contrary, after 25 years it is reduced by 100 thousand per day. About 70 cells die per minute you spend reading a page. After the age of 40, brain degradation accelerates sharply, and after 50, neurons (nerve cells) dry out and the volume of the brain shrinks.
In psychiatry, the syndrome, accompanied by depersonalization, impaired perception of time and space, one's own body and the environment, is officially (!) Called "Alice in Wonderland".

The human small intestine during life has a length of about 2.5 meters. After his death, when the musculature of the intestinal wall relaxes, its length reaches 6 meters.
Humans have approximately 2 million sweat glands. The average adult loses 540 calories per liter of sweat. Men sweat about 40% more than women.
Over the course of a lifetime, a woman's body produces 7 million eggs.
The human eye is capable of distinguishing 10,000,000 color shades.
There are about 40,000 bacteria in the human mouth.
Papaphobia is the fear of the Pope!
It is impossible to sneeze with your eyes open.

There are 33 or 34 vertebrae in the human spine.
Women blink about 2 times more often than men - 6205000 times a year, while each blink lasts 0.3 seconds, it is not difficult to calculate that when blinking, we keep our eyes closed 21.5 days a year.
The smallest cells in a man's body are sperm cells.
The strongest muscle in the human body is the tongue.
There are about 2000 taste buds in the human body.
In Mesopotamia, for the death of a patient, the doctor who treated him was executed, and for blinding, they were blinded.

The human body contains as much fat as it takes to make 7 bars of soap.
Nerve impulses in the human body move at a speed of approximately 90 meters per second.
Men are about 10 times more likely than women to be color blind.
Human gastric juice contains 0.4% hydrochloric acid (HCl).
Nearly half of all human bones are found in the wrists and feet.

Medieval doctors, when in doubt about the diagnosis, diagnosed syphilis.
People with blue eyes are more sensitive to pain than everyone else.
Fingernails grow about 4 times faster than toenails.
During a lifetime, human skin is replaced approximately 1000 times.
There are over 100 different viruses that cause the common cold.
There are about 75 kilometers (!) of nerves in the body of an adult.
One eyeball weighs 28 grams.
If you like to download free books from the Internet, keep in mind that our eyes perceive printed information from a computer screen 25% slower than from a paper sheet.
If people grew up all their lives, then their average height would be 6 m, and their weight would be 255 kg.

About the length, you can also say that the length of the foot is equal to the distance between the wrist and the elbow (this is for men). Legs are needed not only so that there is no truth in them. If you use them for their intended purpose, then by the age of 60 you will have passed about five earthly equators, and leg length is associated with the risk of heart disease: if your legs are 1.5 cm shorter than your neighbor, then your risk of cardiovascular disease is 10% higher.
Cough speed - 900 kilometers per hour. This refers to a stream of air with various drops that escapes from the lungs. This is higher than the speed of a modern airliner, so do not cough against the course (flight) of the plane - it can lose traction and fall.

Our saliva develops a slightly lower speed when sneezing - 177 kilometers per hour.
By the way, about saliva. Did you know that in a lifetime a person produces 23,600 liters of saliva, and he sweats 18,000 liters of sweat.
Plug your nose: for the whole life a man passes gas 209,000 times and a woman 232,000 times, but do not judge beautiful ladies strictly, they just live longer than men (you have to pay for everything!).
Nails grow at a rate of 0.123 mm per day. The growth rate of the nail does not depend on the season, location and nutrition of a person. But with age, growth slows down and at 61 years old it is only 0.1 millimeters per day, and after another six years - 0.095 millimeters per day.

In an adult, the heart pumps about 10,000 liters of blood per day. For one blow, approximately 130 milliliters are ejected into the aorta. The normal pulse at rest is 60-80 beats per minute, and in women the heart beats 6-8 beats per minute more often than in men. With heavy physical exertion, the pulse can accelerate to 200 or more beats per minute. For comparison: the pulse rate of an elephant is 20 beats per minute, that of a bull is 25, that of a frog (cold-blooded animal) is 30, that of a rabbit is 200, and that of a mouse is 500 beats per minute.
The total length of blood vessels in the human body is about one hundred thousand kilometers.

Here is how the blood is distributed in the body at rest: a quarter of the total volume is in the muscles, the other quarter is in the kidneys, 15% in the vessels of the intestinal walls, 10% in the liver, 8% in the brain, 4% in the coronary vessels. heart, 13% - in the vessels of the lungs and other organs.
36,800,000 is the number of heartbeats a person has in one year.
During an average life, the heart makes 3300000000 beats (just think about this colossal figure!). Take care of yourself!

A human hair is about 5000 times thicker than a soap film.
The length of hair on the head, grown on average by a person during his life, is 725 kilometers.
Blondes grow beards faster than brunettes.
The hair growth rate is approximately 0.3-0.35 mm per day, that is, 12 cm per year, the life expectancy of the hair is 2-4 years; considering that the total number of hairs on the head of redheads is about 80,000, for brunettes - 100,000, for blondes - 140,000, then in a lifetime the average person grows hair to a total length of up to 1,008,000 kilometers (you can wrap the earth around the equator 22 times).

Every day a person loses from 30 to 120 hairs.
Hair grows fastest between the ages of 15-30. Hair growth slows down after 50. In summer, by the way, hair grows faster than in winter.

The hair can be stretched to 1/5 of its length, and after that it returns to its state.
In terms of strength, hair is comparable to aluminum and is able to withstand a load of 100 to 200 g.
Hair is hygroscopic, that is, it is able to absorb moisture - this is due to the structure of the hair.
Hair is resistant to weak acids, but does not tolerate alkaline compounds.
Hair can accumulate some substances, which allows them to be used as an identifier.
The lifespan of hair is different: on the head in men on average 2 years, in women 4-5 years.
Redheads have the thickest hair, but there is less of it than others.
Black hair is the largest of all, can be 3 times thicker than light hair.
The first hairs appear in a child in the womb, at about 4-5 months of pregnancy.
Hair grows at an average rate of 0.4 mm per day.
As we age, hair becomes shorter and thinner.
Hair is mostly made up of proteins.
The hair bulb has three phases of life: anagen (hair growth phase), catagen (transitional phase), telogen (resting phase).
Women are less likely to go bald than men because the roots of women's hair sit 2 millimeters deeper in the skin than men's.
Human skin is 95% covered with hair.
During the day, each hair lengthens by about 0.35 mm.
The optimum water temperature for washing hair is 35-45°C.
84% of women improve their mood by going to the hairdresser.
According to American experts, 60-70% of men and 25-40% of women suffer from hair loss.
About 20 hairs grow successively from each hair follicle during a lifetime.
There are 300,000 hair loss remedies in the world, more than any other disease.

A person is made up of more than 100000000000000 cells (read "one hundred trillion"). For comparison:
There are approximately 6,500,000,000,000,000 (six and a half quadrillion) cells in an elephant.

Man is 60% water. It is unevenly distributed: for example, only 20% of water in fatty tissues, 25% in bones, 70% in liver, 75% in muscles, 80% in blood and 85% of water in the brain of the total weight.
When looking at these figures, a seeming paradox strikes - there is less water in liquid blood than in a fairly dense brain. But the point is not only in the quantity, but also in the "packaging" of water.
It is known that jellyfish are 98-99% water, however, the jellyfish does not dissolve in the sea, it can be picked up.

The remaining 40% of the weight of the human body is distributed as follows: proteins - 19%, fats and fat-like substances - 15%, minerals - 5%), carbohydrates - 1%.

Of the elements that make up our body, oxygen, carbon, hydrogen and nitrogen play the most important role. In the body of an adult, there are about 70 kilograms of them. There is also a lot of calcium and phosphorus - together they are almost 2 kilograms, they are part of the bone, ensuring its strength. Potassium, sulfur, sodium, chlorine are contained in quantities of several tens of grams. Iron in a person is only about 6 grams, but it plays an extremely important role, being part of hemoglobin.

Oddly enough, it is not possible to indicate the exact number of bones in the human skeleton. First, it is somewhat different for different people. Approximately 20% of people have abnormalities in the number of vertebrae. One person out of every twenty has an extra rib, and in men an extra rib occurs about 3 times more often than in women (contrary to the biblical legend about the creation of Eve from Adam's rib). Secondly, the number of bones changes with age: over time, some bones fuse together, forming tight sutures. Therefore, it is not always clear how to count the bones. For example, the sacrum clearly consists of five fused vertebrae. Count it as one or five? Therefore, reputable manuals carefully indicate that a person has "somewhat more than 200 bones."
The longest bone is the femur, its length is usually 27.5% of a person's height. The shortest is the stirrup, one of the bones that transmit the vibrations of the tympanic membrane to the sensitive cells of the inner ear. It works like a lever, increasing the pressure of sound waves. Its length is only 3-4 mm.
The smallest muscle is the stirrup muscle. When sounds are too strong, she turns the stirrup so that the ratio of the length of the arms of the bone-lever changes, and the sound amplification factor drops.

It is impossible to accurately specify the number of muscles. Specialists count from 400 to 680 muscles in a person. For comparison: grasshoppers have about 900 muscles, some caterpillars have up to four thousand. The total muscle weight in a man is about 40% of body weight, and in a woman it is about 30%.
In a calm state, lying down, a person consumes 400-500 liters of oxygen per day, making 12-20 breaths per minute. For comparison: the respiratory rate of a horse is 12 breaths per minute, rats are 60, and canaries are 108.
In spring, the respiratory rate is on average one third higher than in autumn.
Each red blood cell contains about 270 million hemoglobin molecules. The lifespan reaches several months (there are several types of leukocytes, which is why their lifespans are so diverse). In an adult, a billion red blood cells, 5 billion white blood cells, and 2 billion platelets die every hour. They are replaced by new cells produced in the bone marrow and spleen.
Approximately 25 grams of blood is replaced per day.
The bone marrow of an adult, a loose mass that fills the internal cavities of some bones, weighs an average of 2600 grams. For 70 years of life, he gives 650 kilograms of red blood cells and a ton of white blood cells.
The human nervous system contains about 10 billion neurons and about seven times as many serving cells - supporting and feeding.
Only one percent of nerve cells is engaged in "independent work" - it receives sensations from the external environment and commands the muscles. Ninety-nine percent are intermediate nerve cells that serve as amplifying and transmitting stations.
The largest human nerve cells are 1000 times larger than the smallest. The thinnest nerve fibers have a diameter of only 0.5 micrometers, the thickest - 20 micrometers.
More than half of all neurons are concentrated in the cerebral hemispheres.
The total area of ​​the cerebral cortex varies from 1468 to 1670 square centimeters.
In the cranial nerves, 2,600,000 nerve fibers enter the brain and 140,000 exit. About half of the outgoing fibers carry orders to the muscles of the eyeball, controlling subtle, fast and complex eye movements. The remaining nerves control facial expressions, chewing, swallowing, and the activity of internal organs. Of the incoming nerve fibers, two million are visual.

The average normal visual acuity is 0.0003 arc minutes, that is, the eye is able to distinguish a well-lit object with a diameter of one tenth of a millimeter at a distance of 25 centimeters. But if the object itself glows, it can be much smaller.
A hole with a diameter of 3-4 thousandths of a millimeter, pierced in a sheet of tin, behind which a light bulb is lit, is clearly distinguished by a normal eye.
The eye is able to distinguish 130-250 pure color tones and 5-10 million mixed shades.
The frequency of flashes, at which the flashing light appears to the eye as evenly burning, for rods is 15 per second, for cones - 71-90.
Full adaptation of the eye to the dark takes 60-80 minutes.
In a minute, 740-750 milliliters of blood flows through the brain.
Blood cells are constantly dying and being replaced by new ones. The life expectancy of an erythrocyte is 90-125 days, a leukocyte is from several hours to several days.
Starting from the thirtieth year of life, 30-50 thousand nerve cells die daily in a person. The main dimensions of the brain are reduced. With age, the brain not only loses weight, but also changes shape - flattens. In men, the weight of the brain is maximum at 20-29 years, in women - at 15-19.
The mass of the human brain is 1/46 of the total body weight, the mass of the brain of an elephant is only 1/560 of the body weight.

The finger is able to feel vibrations with an amplitude of two ten-thousandths of a millimeter.
The average surface of human skin is about 2 square meters. It is necessary to know it when prescribing certain drugs and medical procedures. To calculate the surface of the skin in the clinic, the following formula is usually used:
body surface = (body weight X 4) + 7
Weight should be taken in kilograms, the surface is obtained in square meters. There are more precise formulas that take into account growth, but the calculation for them is much more complicated, and they are used less often.
In one minute, 460 milliliters of blood passes through the skin.
The skin contains 250,000 cold receptors, 30,000 heat receptors, a million pain endings, half a million touch receptors, and three million sweat glands.
There are about 25,000 cells in the inner ear that respond to sound. The frequency range perceived by the ear lies between 16 and 20,000 hertz. With age, it decreases, especially due to a decrease in sensitivity to high sounds. By the age of 35, the upper limit of hearing drops to 15,000 hertz.

The ear is most sensitive to the range of 2000-2300 hertz. The best ear for music (the ability to distinguish height) falls on the region of 80-600 hertz. Here our ear is able to distinguish, for example, two sounds with a frequency of 100 hertz and 100.1 hertz. In total, a person distinguishes 3-4 thousand sounds of different heights.
We become aware of a sound 35-175 milliseconds after it has reached the ear. Another 180-500 milliseconds is required for the ear to “tune in” to receiving this sound, to achieve the best sensitivity.
There are about 9,000 taste buds on the tongue. The best temperature for their operation is 24 degrees Celsius. (Gourmets should take this into account!)

The area of ​​the olfactory zone of the nose is 5 square centimeters. There are about a million olfactory nerve endings here. In order for an impulse to arise in the olfactory nerve fiber, approximately 8 molecules of an odorous substance must reach its end. In order for the sensation of smell to arise, at least 40 nerve fibers must be excited.

When chewing food, the jaw muscles develop a force of up to 72 kilograms on the molars, and up to 20 kilograms on the incisors. It takes 25 kilograms to chew bread, and 15 kilograms to chew roast veal.
For one square millimeter of the gastric mucosa, there are about a hundred glands that secrete digestive juice.
The small intestine, where digested food is absorbed into the blood, has about 5 million villi on its inner surface - the thinnest hair-like outgrowths through which nutrients are absorbed.
A sip of water - is it a lot or a little? Numerous measurements have shown that a man swallows an average of 21 milliliters of liquid in one gulp, and a woman 14 milliliters.

The feeling of thirst appears when the loss of water is equal to one percent of body weight. A loss of more than 5% can lead to fainting, and more than 10% can lead to death from withering.
A fresh fingerprint weighs approximately one millionth of a gram. It consists of water, fats, proteins and salts secreted by the skin.
Even harsh men shed 1-3 milliliters of tears daily. Tears are constantly produced by the lacrimal glands and moisten the cornea of ​​the eye, protecting it from exposure to air and dust.
At least 700 enzymes work in the human body....

squid sperm
This case occurred with a 63-year-old resident of South Korea. While eating a half-baked squid in a restaurant, she suddenly felt a disgusting taste in her mouth, and then an urge to vomit. Time passed, but she did not get better, and she had to see a doctor. He told the victim that she had caught a squid spermatophore - a receptacle for the male's sperm - on her tooth. Squid spermatozoa, as it turned out, are incompatible with the human body - at least without harm to this organism. Fortunately, they cannot develop in it, so parting with vile food was not particularly painful for the victim.

57 fly larvae
Not everyone knows that a fly is an insect that is deadly to humans. At least if it gets stuck in his ear. This is exactly what happened to a 92-year-old patient, from whose ear doctors removed a dead fly and 57 live larvae. The fly apparently got stuck in the ear when it was time for it to lay its eggs. A few days later, when the developing larvae began to cause unbearable pain to the patient, she nevertheless turned to the doctors, who saved her from suffering.

Several hundred larvae
The story of 57 larvae in the ear is nothing compared to the case of the Hindu who went to the doctor about an infection in his ear. After examining the patient, the doctor realized that it was not an infection - hundreds of small fly larvae simply devoured the flesh of a man alive! He had to go through a very painful procedure to remove them, and then be treated for a long time.

Plants in the lungs
A resident of Massachusetts, Ronan Swedan, could not get rid of his cough for many months. Doctors suspected a tumor in his lungs, however, after taking an x-ray, they discovered a much more exotic cause of his suffering. Apparently, once Ronan swallowed a pea, which, by accident, went into the respiratory tract ... and sprouted in the lungs! The man had to undergo an operation that saved him from the garden in his lungs.

Fish in the bladder
Men who have fallen on the banks of the Amazon or the Ganges should in no case urinate into the water! Local small fish are attracted to the smell of urine - so much so that, swimming up to the violator of sanitary standards, they swim to the source of aromas, penetrating the penis and urethra and causing a lot of suffering to the victim. Indian doctors recently described a case when such a fish, only 2 centimeters long, swam through the urethra into the bladder of a local young man, and in order to remove the source of suffering, he had to be subjected to a complex surgical operation.

Fish in the lungs
Tourists are often warned not to drink water from Indian rivers. Local residents are much more indifferent to this - and in vain! Recently, a boy was admitted to an Indian hospital with breathing problems. On the X-ray, it turned out that in his lung there is ... a live fish 7 centimeters long! As it turned out, the victim played with friends on the river in the game popular with local boys "who will swallow a live fish?" The young daredevil managed to swallow it - but the fish got into the wrong throat, and as a result, the boy had to go under the surgeon's knife.

Acne in the bladder
This story happened to an elderly Chinese man who was tempted by "fish peeling" - a bath with sea eels, which, according to the organizer of the event, were supposed to bite off particles of keratinized skin from the body. But one of the eels chose to act differently - and climbed the patient's ureter right into the bladder. When the surgeons removed the eel and measured it, it turned out to be almost 15 centimeters. One can imagine the suffering of the unfortunate!

Acne in the intestines
This wild story also happened in China and also with eel. But only in this case, the victim launched it into the body of his own free will. While watching pornography, a Chinese man decided to give himself exquisite pleasure - and launched a live eel into the rectum! It is not known what he was counting on, but the eel, feeling trapped, tried to fight its way to freedom, for which it gnawed the pervert's large intestine - and immediately became entangled in the internal organs. The sufferer was brought to the hospital with severe internal bleeding, and the doctors had to spend a lot of effort to save his life.

Larvae in hair
This happened to a Colorado resident in 2007. The man suffered from itching in the scalp for many weeks. Shampoos and anti-dandruff products did not work. The itching turned into pain, which soon became completely unbearable. Only then did the unfortunate man go to the doctor, who discovered that gadfly larvae had been deposited under the man's hair. They grew and fed directly under the scalp of the victim, and were already quite large. As soon as the doctors removed them, the patient immediately went on the mend.

cockroach in ear
Small flies and midges get into the ears of children and adults quite often. However, the Australian Hendrik Helmer can be considered a record holder in this regard: when he came to the doctor complaining of unbearable pain in his ear, the doctor removed an almost three-centimeter cockroach from his ear canal! Due to the size of the insect, this was not so easy to do, and the doctor had to work hard with tweezers to evict the intruder and not damage the patient's eardrum. Fortunately, everything ended well.

own twin
In medicine, there are only a few such cases, and each of them makes one shudder with horror and disgust. One of them happened in June 1999 in India. A man named Sanju Bhagat, during a routine examination, found out that his voluminous stomach is not at all the result of a passion for beer and sweets. As it turned out, in the stomach of the 36-year-old Bhagat lived his half-formed twin brother, underdeveloped in the prenatal period. The surgeons relieved Bhagat of this burden, after which the man experienced great relief.

Basically, pathogenic organisms consume the nutrients that a person receives with food. Perhaps this behavior of "uninvited guests" explains the fact that many people who lead a proper lifestyle, monitor their health and nutrition, do not get the desired result, since these "parasites" select all the best, leaving a person only a small particle of useful substances. These creatures are so cunning that they often disguise themselves as other diseases, and a person can go to doctors for years, but not notice a positive result in treatment.

Foreign organisms can enter the human body in several ways, but most often infection occurs through:

For the first time, the pinworm enters the body of a child with dirty hands, through dishes, linen, toys of other children.

• Compliance with the rules of personal hygiene
• Lack of contact with homeless animals
• Keep children away from pets
• When playing with a child on the street, make sure that he does not pick up various objects
• Wash your hands after playing in the sandbox
• During walks, do not eat on the street, only after washing your hands
• Regular house cleaning
• Eat only washed and boiled vegetables, fruits
• Eat only well-cooked or fried meat
• Drink only boiled water

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1. The only part of the body that does not have a blood supply is the cornea of ​​the eye. It receives oxygen directly from the air.
2. The human brain has a capacity of over 4 terabytes.
3. Up to 7 months, a baby can breathe and swallow at the same time.
4. Our skull is made up of 29 different bones.
5. The nerve impulse from the brain moves at a speed of 274 km/h.
6. One human brain generates more electrical impulses in one day than all the phones in the world combined.
7. The average human body contains enough sulfur to kill all the fleas on the average dog; carbon - to make 900 pencils; potassium - to shoot from a toy gun; fat - to make 7 bars of soap; and enough water to fill a 50 liter barrel.
8. The human heart pumps 182 million liters of blood in its lifetime.
9. 50,000 cells in your body are dying and being replaced by new ones while you are reading this sentence.
10. The fetus acquires fingerprints at the age of 3 months.
11. Women's hearts beat faster than men's.
12. A man named Charles Osborne hiccupped for 68 years.
13. Right-handed people live an average of 9 years longer than left-handed people.
14. Approximately 2/3 of people tilt their heads to the right when kissing.
15. A person forgets 90% of his dreams.
16. The total length of blood vessels in the human body is about 100 thousand km.
17. In spring, the respiratory rate is on average 1/3 higher than in autumn.
18. By the end of life, a person remembers an average of 150 trillion bits of information.
19. 80% of the heat of the human body leaves the head.
20. When you blush, your stomach turns red too.
21. The feeling of thirst appears when the loss of water is equal to 1% of body weight. A loss of more than 5% can lead to fainting, and more than 10% can lead to death from dehydration.
22. At least 700 enzymes work in the human body.
23. Humans are the only creatures that sleep on their backs.
24. On average, a 4-year-old child asks 450 questions a day.
25. In addition to humans, koalas also have unique fingerprints.
26. Only 1% of bacteria cause disease in humans.
27. All people on the planet can be comfortably placed in a cube with a side of 1,000 meters.
28. The scientific name for the navel is umbilicus.
29. The tooth is the only part of the human body that is not capable of self-healing.
30. The average person needs 7 minutes to fall asleep.
31. The right-hander chews most of the food on the right side of the jaw, the left-hander - on the left.
32. There are only 7% left-handers in the world.
33. The aroma of apples and bananas helps to lose weight.
34. The length of hair on the head, grown by a person on average during his life, is 725 km.
35. Among people who can move their ears, only 1/3 can move one ear.
36. The average person swallows 8 small spiders in their lifetime.
37. The total weight of bacteria living in the human body is 2 kg.
38. 99% of all calcium in the body is in the teeth.
39. Human lips are hundreds of times more sensitive than fingertips. A real kiss increases the pulse to a frequency of 100 or more beats per minute.
40. The absolute strength of the masticatory muscles on one side is 195 kg.
41. During a kiss, 278 different cultures of bacteria are transferred from one person to another. Luckily, 95% of them are harmless.
42. Parthenophobia is the fear of virgins.
43. Tooth enamel is the hardest tissue produced by the human body.
44. If you collect all the iron contained in the human body, you get only a small screw for the clock.
45. There are over 100 different viruses that cause the common cold.
46. A kiss of sufficient duration is much better than chewing gum, normalizes acidity in the mouth.
47. Banging your head against a wall can lose 150 calories an hour.
48. Man is the only representative of the animal kingdom capable of drawing straight lines.
49. During a lifetime, human skin is replaced approximately 1,000 times.
50. Every person has dimples on the lower back, only in some they are pronounced, while in others they are less noticeable. The dimples are located where the pelvis fuses with the sacrum, so their appearance is quite reasonable.
51. Women blink about 2 times more often than men.
52. The composition of the human body includes only 4 minerals: apatite, aragonite, calcite and cristobalite.
53. A real passionate kiss causes the same chemical reactions in the brain as skydiving and firing a gun.
54. Men are considered dwarfs when they are under 130 cm tall, women are under 120 cm.
55. Fingernails grow about 4 times faster than toenails.
56. People with blue eyes are more sensitive to pain than everyone else.
57. Nerve impulses in the human body move at a speed of about 90 meters per second.
58. In the human brain, 100 thousand chemical reactions occur in 1 second.
59. Children are born without kneecaps. They appear only at the age of 2–6 years.
60. If one of the identical twins is missing one or another tooth, as a rule, the same tooth is missing in the other twin.
61. The surface area of ​​human lungs is roughly the size of a tennis court.
62. On average, a person spends 2 weeks kissing in his entire life.
63. Blondes grow beards faster than brunettes.
64. Leukocytes in the human body live 2-4 days, and erythrocytes - 3-4 months.
65. The strongest muscle in the human body is the tongue.
66. The size of a human heart is approximately equal to the size of his fist. The weight of an adult heart is 220-260 grams.
67. From the moment of birth, 14 billion cells already exist in the human brain, and this number does not increase until death. On the contrary, after 25 years it is reduced by 100 thousand per day. In the minute you spend reading a page, about 70 cells die. After the age of 40, brain degradation accelerates sharply, and after 50, neurons (nerve cells) dry out and the volume of the brain shrinks.
68. At birth, there are about 300 bones in the body of a child; in adulthood, there are only 206 of them.
69. The human small intestine during life has a length of about 2.5 meters. After his death, when the musculature of the intestinal wall relaxes, the length reaches 6 meters.
70. The right lung of a person holds more air than the left.
71. An adult person takes about 23 thousand breaths (and exhalations) per day.
72. The smallest cells in a man's body are sperm cells.
73. There are about 40,000 bacteria in the human mouth.
74. There are about 2,000 taste buds in the human body.
75. The human eye can distinguish 10 million colors.
76. The chemical compound responsible for the ecstasy of love (phenylethylamine) is present in chocolate.
77. The human heart creates pressure that is enough to raise the blood to the level of the 4th floor.
78. A person burns more calories while sleeping than while watching TV.
79. Children grow fastest in spring.
80. Every year, more than 2,000 left-handers die due to errors in the operation of mechanisms designed for right-handers.
81. It turns out that every 300th man has the opportunity to satisfy himself orally.
82. A person uses 17 muscles when he smiles and 43 when he frowns.
83. By the age of 60, most people have lost half of their taste buds.
84. While flying in an airplane, a person's hair growth rate doubles.
85. 1% of people can see infrared and 1% can see ultraviolet.
86. If you are locked in a completely enclosed room, then you will die from carbon dioxide poisoning, not from lack of air.
87. According to statistics, only 1 person in 2 billion crosses the threshold of 116 years.
88. The average person speaks 4,800 words in 24 hours.
89. The retina inside the eye covers about 650 square meters. mm and contains 137 million light-sensitive cells: 130 million rods for black and white vision and 7 million cones for color vision.
90. Our eyes are always the same size from birth, but our nose and ears never stop growing.
91. In the morning, a person is about 8 mm taller than in the evening.
92. The focus muscles of the eye move 100,000 times a day. In order for the leg muscles to make the same number of contractions, you need to walk 80 km a day.
93. Cough - an explosive charge of air that moves at speeds up to 100 km / h.
94. According to German researchers, the risk of a heart attack is higher on Monday than on any other day of the week.
95. Bone is 5 times stronger than steel.
96. You can't sneeze with your eyes open.
97. Ingrown nails are a hereditary trait.
98. A normal person will die from complete lack of sleep faster than from starvation. Death will occur in about 10 days without sleep, while starvation will occur in a few weeks.
99. The average life expectancy is 2,475,576,000 seconds, we speak an average of 123,205,750 words in a lifetime, we have sex 4,239 times.
100. To get dimples on the cheeks, it is not necessary to resort to surgery. For this there is