In our biology classes, we learned a lot about the human body. But we are convinced that you are not aware of these surprising facts!
1. VERY SENSITIVE FINGERS IN HUMAN BODY
Our fingers can accomplish a lot of things. They are also very sensitive. The proof, if our fingers were as big as the Earth, we could still make the difference between a car and a house.
2. EYES THAT SEE VERY FAR
The eyes allow humans(In human body) to see the world. They are so compelling that, if our planet was flat, they could spot the flame of a pure candle at night nearly 50 km away.
The shape and content of the tears we shed from the eyes vary greatly depending on the emotions or situations that trigger those tears. That is why the tears of joy are different from tears of pain, which in turn are different from the cracks that appear when we cut an onion.
4. LOVE AND THE BRAIN
Being in love is a powerful feeling that affects our whole body. For example, our brain, when in love, releases hormones and neurotransmitters similar to those published by amphetamines, a drug that stimulates brain activity and reduces hunger and sleep. Our heart rate can also accelerate, and we can become overexcited.
5. VERY POWERFUL MUSCLES
Weightlifters can accomplish exceptional things through their muscles. It must say that the human tissues are very powerful, and even more than one could imagine! In fact, to avoid injuring ourselves and protecting our tendons and muscles, our strength is limited. However, in rare moments, for example during an adrenaline rush, this “protection” disappears, allowing us to lift incredible loads, like cars.
6. MARATHONERS IN THE SOUL
If many animals run faster than humans, we can boast the best endurance. It must say that in prehistoric times, humans could follow their prey for days until it died of exhaustion.
7. VERY OLD ATOMS
The atoms that make up the human body are very old. In fact, these are the same ones that created during the Big Bang, which occurred about 13.7 billion years ago.
8. INCREASING BLOOD VESSELS
Growing up or becoming more muscular has a lot more impact on the human body than one might think. In fact, 11 km of new blood vessels created each time a personal gain 500 g of muscle or fat.
9. OUR COUSIN, THE BANANA
What do bananas and humans have in common? Nothing at first sight. However, researchers have discovered that we share 50% of our DNA with this fruit.
10. THE EVIL OF LONELINESS
Being alone is not just painful for the mind, it can be just for the body. There would be a “loneliness sickness.” In fact, the human being would be conditioned not to live alone and to interact with others, in the same way, that he is conditioned to avoid physical pain.
11. WE ARE DOING LIGHT IN THE DARK
Every human being is bioluminescent, which means that the lights up in the dark. On the other hand, the light we emit is 1,000 times weaker than the average human eye can perceive.
12. A BRAIN “CLOSE” TO THE UNIVERSE
The connections of the neurons of the human brain have a similar structure to that of the universe. It’s as if our brain had “copied” the universe to model itself.
13. MUCH MORE THAN 5 SENSES
One of the first things we learn at school is that we have five senses: sight, hearing, smell, touch, and taste. However, there are about fifteen others such as balance, pain, time, temperature and thirst.
14. A GOLD BODY
Each human has a little measure of gold in his body(in the human body). However, it is very minimal: barely 0.2 milligrams. It is found mainly in our blood. To have a gold coin of 8 grams, it would take the blood of 40,000 people.
15. A BRAIN THAT LOVES OXYGEN
The brain may not be the most substantial part of the body. It represents, in fact, only 2% of the total body mass of an adult. On the other hand, it consumes not less than 20% of the caloric intake and the oxygen daily.
16. WOMEN SEE MORE COLORS.
Most people have three types of color receivers that allow them to see the different colors around us. However, some women who have four or five receivers, which will enable them to see an even more extensive range of colors than anyone else.
17. TASTE THE WORD
Some people suffer from synesthesia. Because of this disorder, they may perceive other sensations than those felt by an average person. For example, someone can “hear” colors and “taste” words.
18. BREASTLESS OFTEN?
It’s because of the carbon dioxide in the air that we have to breathe so much. If our body was able to eliminate carbon dioxide from the blood, we could blow only once every minute.
19. THE BENEFITS OF CRYING
During great emotions (sadness, joy, etc.), we sometimes cry. Crying does not just get rid of the overflow of tears, it helps to lower the level of stress and lessen feelings of sadness and anger. In other words, crying can evacuate.
20. DIFFERENT TEARS
The tears are not the same depending on the emotions we are experiencing. For example, the ones we pour by peeling onions are different from those that flow from our eyes when we are in mourning.
21. VERY FAST RED BLOOD CELLS
Less than a minute is the time it takes for a red blood cell to cross the entire human body. That’s fast!
22. MANY ATOMS
In adulthood, we are made up of an incredible number of atoms. 7,000,000,000,000,000,000,000,000,000, to be more specific. It’s gigantic when you know that there are about 300 billion stars in our galaxy.
23. TELESCOPIC EYES
Telescopes may be able to see beyond human eyes, but they can not capture as much information. Indeed, our eyes can recognize no less than 10 million different colors.
24. AN INFECTIOUS BITE
Better not to be bitten by one of his fellows! Indeed, the bite of a human will almost always cause an infection
25. THE FETUS / MOTHER RELATIONSHIP
The relationship between a mother and her fetus is impressive. Everyone knows that. But did you know that a fetus could send stem cells to his mother if his organs were damaged? They would then have the mission to repair them and thus allow the pregnancy to continue.
26. ANESTHETIC SALIVA?
Human saliva contains opiorphin. After testing rats, researchers found that this protein was three times more effective than morphine.
27. WHERE ARE THE MUSCLES?
Contrary to what one might think, there are no muscles in the fingers. But how are they controlled? Only by tendons!
28. IRON IN THE BODY
The body does contain not only gold but also metal. The amount of iron in the human body is even relatively large. If we could take all the iron from our organization, we could make a nail.
29. A LAZY SMELL
In the morning, when we wake up, not all our “functions” are activated at the same time. For example, the smell is the last thing to wake up.
30. MANY BACTERIA
The human body contains a lot of bacteria. If we could weigh them all at the same time, their weight would be as much as 2 kg. Do not forget that, the next time you step on the scale!
31. A UNIQUE SMELL
Everyone has a unique fingerprint. These allow the police to identify criminals. It also seems that each person has their smell. There would be only one exception: the twins. It’s not tomorrow the day before that we invent a device capable of identifying a murderer by his body odor.
32. FIGHT CANCER PERMANENTLY
Our fight against cancer is more intense than we might think. Every minute, the human body eliminates about 19 potential tumors.
33. PATIENCE IS REQUIRED
It takes about six months for the fingernails to grow and reach maturity. So, if you lose a nail, you will have to wait half a year to see it return to its original size.
34. MANY EGGS
A woman’s ovary contains about 500,000 eggs. However, only 400 of them will ever be able to become fetuses.
35. A STOMACH THAT DOES NOT DIGEST
Theoretically, a stomach could digest itself. Fortunately, the speed of creation of the new cells of the stomach is higher than the rate at which they destroyed. In other words, the cells created are more numerous than the digested cells.
36. AN ESSENTIAL VIEW
The sight is a very precious sense. In fact, 90% of the information we collect about our environment comes from our eyes.
37. IMPOSSIBLE TO TICKLE
Tickling is not a right way to make people laugh. We can tickle others, but on us, it just does not work.
38. TASTE BY SALIVA
Saliva is essential for the taste. In fact, if she is not able to dissolve something, it will be impossible for us to taste it.
39. A LABORIOUS HEART
The heart is the muscle that works the most. Every day, it creates enough energy to carry a truck about thirty kilometers. In a lifetime, this is equivalent to driving back and forth to the moon.
40. AN INCREDIBLE BRAIN
The brain is 60% fat, but still works hard and can generate up to 25 watts of energy, enough to light a bulb.
41. THOUSANDS OF THOUGHTS
The brain never stops working and, in fact, is more active when you sleep. Scientists say that a reasonable person has an average of 70,000 thoughts per day.
42. INNATE INTELLIGENCE
Babies develop 8,000 neurons per second when they are inside the uterus. Newborn babies can recognize their mother’s face only a few hours after birth.
43. AN AMAZING SENSE
Scientists have discovered that the visual cortex of the blind can be renewed to respond to the stimuli received through touch and hearing, to “see” through these senses.
44. AN INSENSITIVE BRAIN
The brain has no pain receptors, so it does not feel anything. These are why doctors can do neurosurgery while the patient is awake.
45. ETERNAL PUMPING
During an average life, the heart pumps a total of 1.5 million barrels of blood. The human heart in activity can drip blood 9.1 meters away.
46. THE SPEED OF SNEEZING
The sneeze travels at an average speed of about 64 km / h. The same rate that a tiger reaches when running!
47. LONG ARTERIES
If you align your veins, arteries and capillaries would measure 100,000 kilometers, equivalent to giving almost two and a half laps to the planet.
48. HAIR GROWTH
The hair grows almost six millimeters every four weeks and continues to grow for up to six years. At that moment, that hair falls out, and a new one becomes in its place.
49. AN INDELIBLE MEMORY
Smell is the oldest of the senses: before sight, hearing or touch, creatures evolved according to the chemicals that surrounded them. The brain is capable of retaining 50,000 different odors.
The human brain is the most sophisticated we know in the entire universe. Humans have more neurons at two years than at any time in their lives, although it takes the brain 20 years to mature.
51. EYE FOR DETAILS
If the human eye were a digital camera, it would have 576 megapixels.
52. KILOMETERS AWAY
If we could unscrew it, the DNA of all the cells of the human body would extend 16,093,440,000 kilometers. These are equivalent to the distance between Earth and Pluto or 6,000 trips from Earth to the Moon.
53. LONG-TERM STORAGE SPACE
Long-term memory, which develops up to 40 years, can contain up to a billion individual bits of information in a lifetime.
54. THE COLOR OF THE BONES
Did you know that the color of the bones oscillates between cream and light brown? The bones you see in the museum are white because they were boiled and cleaned.
55. AN ELECTRIC HEART
Because the heart has its electrical impulse, it can continue to beat for a time if it separated from the body.
56. TURN RED
When you blush, your body is responding to the sympathetic nervous system by increasing the circulation of blood in the body.
57. BODY ODOR
The sweat itself does not smell. They are the bacteria in the skin that turn sweat into malodorous acid, which causes your body odor.