Thanks to their senses, people can interact with the world around them. Even people have such senses that no one knows about.
40 facts about eyes (vision)
1. Brown eyes are actually blue, but this is not visible due to the presence of brown pigment in them.
2.With open eyes, a person will not be able to sneeze.
3. When a person looks at someone he loves, his pupils dilate by 45%.
4. The eyes can only see 3 colors: green, red and blue.
5. Almost 95% of animals have eyes.
6. The muscles that control the eyes are the most active in the human body.
7. Approximately 24 million images a person sees in their lifetime.
8. Human eyes are capable of processing approximately 36,000 particles of information per hour.
9) A person's eyes blink about 17 times a minute.
10. A person sees not with his eyes, but with his brain. This is why vision problems are associated with brain activity.
11. There is no blind spot in the eyes of the octopus.
12. If the person in the photo with the flash sees only one eye red, then it is possible that he has a tumor.
13. Johnny Depp is blind in one eye.
14. There are hairs in the eyes of bees.
15.Most cats with blue eyes are considered deaf.
16. Many predators sleep with one eye open to hunt game.
17. About 80% of information received from the outside passes through the eyes.
18.In strong daylight or cold, the tint of a person's eyes changes.
19. A resident of Brazil could protrude 10 mm eyes.
20. About 6 eye muscles help to rotate a person's eyes.
21.The lens of the eye is much faster than a photographic lens.
22. The eyes are considered fully formed at the age of 7.
23. The cornea of the eye is the only part of the human body that is not supplied with oxygen.
24. The corneas of human and shark eyes are very similar.
25. The eyes do not grow, they remain the same size as at birth.
26. There are people who have different colored eyes.
27. The eyes are more workload than other senses.
28. The greatest harm to the eyes is caused by cosmetics.
29. The rarest eye color is green.
30. The fairer sex is 2 times more likely to blink than men.
31. The eyes of a whale weigh no more than 1 kilogram, but their vision is poor even at a distance.
32. Human eyes are not able to freeze, this is due to the lack of nerve endings.
33. All newborns have blue-gray eyes.
34. In about 60-80 minutes, the eyes are able to get used to the dark.
35. Color blindness affects males more than females.
36. Pigeons have the highest viewing angle.
37. People who have blue eyes see better in the dark than those who have brown eyes.
38. The human eye weighs about 8 grams.
39. It is unrealistic to transplant the eyes, because it is impossible to separate the optic nerve from the brain.
40. Ocular proteins are found only in humans.
25 facts about ears (rumor)
1. Men are more likely to lose hearing than women.
2. Ears are a self-cleaning human organ.
3. The sound that a person hears when applying a shell to his ear is the sound of blood running through the veins.
4. The ears play an important role in maintaining balance.
5. Children have more sensitive hearing than adults.
6. At birth, the baby manages to hear the lowest sound.
7. Ears are an organ that can grow throughout life.
8. If a person eats a lot, then his hearing may deteriorate.
9. Even when a person falls asleep, his ears work, and he hears everything well.
10. People can hear their own voice through the prism of water and air.
11. Frequent noise is a major cause of hearing loss.
12. Elephants can hear not only with their ears, but also with their legs and trunk.
13. Each human ear hears sounds differently.
14. Giraffes brush their ears with their tongue.
15. Crickets and grasshoppers hear not with their ears, but with their paws.
16. A person is able to distinguish about 3-4 thousand sounds of different frequencies.
17. About 25,000 cells are found in human ears.
18. The sound of a crying baby is louder than a car horn.
19. The voice of the person recorded is very different from what we can hear in reality.
20. Every 10th person in the world has a hearing problem.
21. The ear drum in frogs is located behind the eyes.
22. A deaf person may have a good ear for music.
23. The roar of tigers can be heard from a distance of 3 kilometers.
24. Frequent wearing of headphones may cause the phenomenon of "ear congestion".
25 Beethoven was deaf.
25 facts about the tongue (taste)
1. Language is the most flexible part of a person.
2. Language is the only organ of the human body that is able to distinguish between tastes.
3. Each person has a unique language.
4. People who smoke cigarettes taste worse.
5. The tongue is the muscle of the human body that is not attached on both sides.
6. There are approximately 5,000 taste buds on the human tongue.
7.The first human tongue transplant was performed in 2003.
8. The human tongue distinguishes only 4 tastes.
9. The tongue consists of 16 muscles, and therefore this sense organ is considered the weakest.
10. The fingerprint of each language is considered unique, as is the fingerprint.
11. Girls are better at picking up sweet tastes than boys.
12. Breast milk is sucked by newborns with the tongue.
13. The organ of taste affects human digestion.
14. Anaerobic bacteria live on the human tongue.
15. The tongue heals much faster than other organs.
16. The tongue is the most mobile muscle in the body of every person.
17. Some people are able to roll up their own language. This is due to differences in the structure of this organ.
18. On the tip of the woodpecker's tongue there are horny spines, which help him to get the larvae hidden in the wood.
19. Taste papillae, which are on the human tongue, live for about 7-10 days, after which they die, being replaced by new ones.
20. The taste of food is determined not only by the mouth, but also by the nose.
21. Good taste begins to develop even before birth.
22. Each person has a different number of taste buds.
23. The urge to try something sweet can indicate a lack of self-control.
24. The more papillae are on the tongue, the less often a person experiences hunger.
25. By the color of the tongue, one can tell about human health.
40 facts about nose (sense of smell)
1. There are approximately 11 million olfactory cells in the human nose.
2. Scientists have identified 14 forms of human nose.
3. The nose is considered the most protruding part of a person.
4. The shape of the human nose is fully formed only by the age of 10.
5. The nose grows throughout life, but it happens at a slow pace.
6. Despite the fact that the nose is receptive, it cannot smell natural gas.
7. Newborns have a much stronger sense of smell than adults.
8. Only three out of ten people are able to dilate their nostrils.
9. People who have lost their sense of smell will also lose their sexual desire.
10. Each of the human nostrils perceives smells in its own way: the left one evaluates them, the right one chooses the most pleasant ones.
11. In ancient times, only leaders had a humped nose.
12. Familiar smells, which once had to be felt, are able to renew past memories.
13. Women who find their man's face attractive are expected to smell better than other women.
14. Smell is what will deteriorate first with age.
15.In the first year of life of newborns, the acuity of smell is lost by 50%.
16. You can tell about the age of people by the tip of the nose, because it is in this place that elastin and collagen proteins break down.
17. A person's nose is simply not able to distinguish some smells.
18. Before mummifying an Egyptian, his brain was pulled out through his nostrils.
19 There is an area around the human nose that releases pheromones that attract the opposite sex.
20. At a given moment in time, a person can breathe only one nostril.
21. Often people have belaying their nose.
22. About half a liter of mucus is produced daily in the nose of every healthy person.
23. The nose can work like a pump: pumping from 6 to 10 liters of air.
24. About 50 thousand smells are remembered by the human nose.
25. About 50% of people don't like their nose.
26.Slugs have 4 noses.
27. Each nose has a "favorite" smell.
28. The nose is closely related to the center of emotion and memory.
29. Throughout life, the human nose changes.
30. It is the nose that affects the manifestation of sensuality.
31. The nose is the human organ that is least studied.
32. Pleasant odors relax the human nervous system, while unpleasant odors evoke antipathy.
33. Smell is the most ancient feeling.
34. Autism can be diagnosed by smells.
35. The nose is able to detect the sound of our voice.
36.Smell is an irresistible element.
37. It is very difficult to control a person's sense of smell.
38. About 230 million olfactory cells are found in a dog's nose. In the human organ of smell, there are only 10 million of these cells.
39 There are anomalies of smell.
40. Dogs can often look for the same scent.
30 facts about leather (touch).
1. There is an enzyme in human skin - melanin, which is responsible for its color.
2.On the skin under a microscope, you can see about a million cells.
3.Round wounds on human skin take longer to heal.
4. From 20 to 100 moles can be on human skin.
5. The skin is the largest organ of the human body.
6. Female skin is much thinner than male skin.
7.Insects tend to bite the skin of the feet.
8.Smoothness of the skin can be determined by the amount of collagen.
9. Human skin consists of 3 layers.
10. Approximately 26-30 days in an adult, the skin is completely renewed. If we talk about newborn babies, then their skin is renewed in 72 hours.
11. Human skin is capable of producing antibacterial chemicals that prevent microbes from multiplying.
12. Africans and Europeans have many more sweat glands on their skin than Asians.
13. Throughout life, a person sheds about 18 kilograms of skin.
14. More than 1 liter of sweat per day is produced by human skin.
15. The feet have the thickest skin.
16. About 70% of human skin is water, and 30% is protein.
17. Freckles on human skin can appear in adolescence and disappear by the age of 30.
18. When stretched, human skin resists.
19. There are approximately 150 nerve endings on human skin.
20. Indoor dust occurs due to keratinization of the skin.
21. The thickness of the baby's skin is 1 millimeter.
22.When carrying a baby, a woman's skin becomes more sensitive to the sun's rays, which can cause burns.
23. The science that studies the sense of touch is called haptics.
24. There were cases when a person created works of art with the help of touch.
25. A person's heart rate will slow down slightly if their hands are touched.
26. Tactile receptors are found not only in the skin, but also in the mucous membranes, joints and muscles.
27. The sense of touch in a person appears first, and is lost last.
28. White skin appeared only 20-50 thousand years ago.
29. People can be born with no melanin at all and are called albinos.
30. There are approximately 500 thousand sensory receptors in human skin.
15 facts about the vestibular apparatus
1. The vestibular apparatus is considered the human balance organ.
2. The receptors of the vestibular apparatus can be irritated by movement or tilt of the head.
3. Each vestibular center has a close relationship with the cerebellum and hypothalamus.
4. All human actions by the vestibular apparatus are evaluated instantly.
5. A person has 2 vestibular apparatus.
6. The vestibular apparatus is part of the ear.
7. The human vestibular apparatus is configured only for movement in the horizontal plane, but not in the vertical plane.
8. Many people do not know that they have a vestibular apparatus in their bodies.
9. The vestibular apparatus is formed from accumulated ciliated cells that are located in the inner ear.
10. The impulses that reach the brain from the vestibular apparatus may weaken.
11. The vestibular apparatus is capable of exercising.
12. The work of the vestibular apparatus also changes in a state of weightlessness.
13.In the first 70 hours, the activity of vestibular receptors may decrease.
14. Visual and physical activity has a connection with the human vestibular apparatus.
15. The vestibular apparatus may engage in activities that irritate it.
