Do you know how the human body works? We are sure that it is not as good as it seems. Why? Because they were able to collect 50 of the most interesting facts about the human body. These are scientific and not amazing facts you did not know about. Maybe they knew? Then we suggest that you familiarize yourself with the information presented to understand the completeness of knowledge.
Even though people are one of the cleanest creatures on Earth, there are ten times more bacteria in the human body than the number of cells. According to various estimates, there are about 100 trillion of the latter in 200-300 groups. Now imagine how many bacteria “live” on us.
There is an opinion that getting rid of fat is not the result of its “rendering” or burning, not the result of sweating, but only a consequence of active breathing. Scientists who adhere to this point of view say that for 10 kilograms of body fat that leaves our body as a result of exercise, training, or other acts of activity, 84% or 8.4 kilograms exit through the lungs in the form of melted liquid. Only 16% of fat leaves our body in the form of sweat.
You are likelier to laugh when someone tickles you than if you do it yourself. The fact is that the brain, in the process of such an attempt, will send signals to the body that these conscious, intentional actions should be ignored. Try it.
Some of the reflexes we acquire and some of those that are a priori do not “reach” the brain. They are taken and assimilated by the spinal cord, which “absorbs” the sensory “aspects” and begins to be able to control the muscle tissues of the human limbs.
Any physically active person who regularly devotes time to professional training or amateur activities, even at home, develops muscles and other tissue groups and literally improves the circulatory system. The body learns to “drive” more blood through the veins; the hematopoietic organs synthesize additional blood bodies. But the lungs do not develop. Why? Because they are a priori ways to saturate the blood with oxygen in the quantities necessary for our life. And 2, 3, and 5 liters of “red liquid” they can safely “process” without additional development.
There is a bone under the tongue. Almost under the tongue, to be more precise (just below the mobile jaw, that is, the lower one). And every person has it. And remarkably, this bone is not connected with other body bones.
Some are sure that the appendix is a rudiment “lost at lunch.” It is not. Its main function is to protect beneficial bacteria that “live” in the intestines of each person. You can live without it, even well, but the importance of the “rudiment” should not be underestimated.
Did you know that pregnant women are “mutants”? And this is not an insult: during the rapid development of a child in the stomach of any mother, an additional organ begins to form and develop in the same way. Which? This is the placenta – the embryonic organ in placental mammals of females.
If the water were supersaturated with oxygen, people could “breathe” it. But only 10-15 minutes. A group of desperate researchers who conducted a “deadly” experiment were able to obtain results according to which, after a specified time, the lungs will not be able under any circumstances to cope with the “processing” of too dense water. And it’s all about density.
The human stomach is surrounded by several neurons equal to the number of neurons in the brain of an adult cat. This is a kind of “gastric” nervous system that controls the processes of digestion in the initial stages. She is completely autonomous and can “remember” some reflexes and feelings.
Almost a third of the body’s waste products are excreted through the human body’s largest organ. Do you know what this organ is? This is skin. The skin is a colossal excretory system in a sense.
9 out of 10 people swallow food incorrectly. Remember babies swallowing mother’s milk or various mixtures, pushing their tongue forward. Already trying to imitate? We did the same when we found out about this fact. And this method of swallowing is the only correct one. It is “distorted” due to the transition to solid food. It’s chewing and swallowing as interrelated processes require “rolling,” moving in the mouth with the tongue. The result is incorrect swallowing. Scientists note that because of this, dental problems, lisping and other speech distortions most often develop.
In a person’s eyes, there are so-called “blind” spots in which the optic nerves “go out” to the brain. To “keep” the secret around his own “appearance,” the latter deceives his eyesight and hides blind spots. He darkens them.
Alzheimer’s disease is a very real disease. No quotes. This is a kind of substance that “devours” the brain. This is confirmed by many autopsies, which found that the brains of the “afflicted” were covered with a sticky fibrous substance.
Sometimes our body deliberately restricts muscle activity if there is a possibility of damage to the spine. Don’t believe it? Experiment: stand up straight, and stretch your arms forward. Ask someone to put pressure on them. This is a strength test. When you give up, you lose. Now move on, lean a little; 2-3 cm of spine displacement relative to the vertical is enough. Now your outstretched arms can be lowered with less effort.
People prone to fainting at the sight of their blood may have problems with the functioning of the autonomic nervous system in terms of regulating vascular tone and the rhythm of contraction of the heart muscle.
Are you worried? Are you worried about anything? Fill a sink with cold water and dip your face in it up to your ears. The so-called “diving” reflex will work. It will quickly tone you up.
People with a low heart rate are prone to fainting if they take a seated position. This is because the heart rhythm drops sharply, and the myocardium does not always have time to “adapt,” which causes internal failures. Although most often, the opposite is true: people want to “fall” into a chair or sofa when they rise sharply.
The jaw muscles are among the strongest in our body. Scientists explain this fact by milestones of human history and evolution. Once upon a time, our ancestors were forced to eat exclusively raw meat and hard root crops; this required effort and led to developing muscles that move the lower jaw.
The body limits a person in standard situations to the ability to use only 30% of muscle potential. In extreme cases (threat to life and the like), it opens access to a full resource due to a series of lightning-fast reactions and signals. This restriction, according to scientists, is necessary to prevent premature wear of muscle tissue.
People radiate light. But it is impossible to see him: he is a thousand times weaker. Our eyes cannot catch it. But this is perfectly done by various devices and devices. The “algorithms” for the functioning of most of these devices are based on the principle of natural human luminescence.
In one minute, the human body “in the prime of life” gets rid of tens of thousands of dead cells. Do you know where the dust in the apartment comes from? Not only from shabby sheets and pillowcases: about 60% of this dust is our “landed” dead cells. I do not like? The vacuum cleaner is waiting.
The human eye has a separate immunity. Scientists proved that it is needed to protect the most exposed mucous surface and confront the natural general immunity. If the eyes had not had their immune system, the general would have destroyed them. She believes that the eyes are a foreign body.
The clavicle is made to break. That is why most fractures occur in its area. What for? This is made by nature to protect the spine from the energy of strong blows.
Many cardiologists who are surgeons say that the heart smells like Mushrooms.
Generations of people living in relatively non-standard conditions receive more advantages in terms of survival. It’s like ancient people who easily endured frost, heat, bad weather, and more. An example is the tribes of Malaysia, “trading” on the water (75-80% of their waking time they spend on it). They differ in that their spleens are almost twice as large as others who spend most of their time on land. This is an act of adaptation of the body to store more blood, which is necessary to supply all body systems under conditions of excessive stress (water is denser than air, so it is difficult to “work” in it).
More tears flow from the nose during crying than snot. This is how the lacrimal glands work.
On the body of any person, be it a man or a woman, there is almost as much hair as a chimpanzee. Doesn’t it seem like it? Even if you are a “naked” person, look closely at yourself in a bright light. You will see “fluff.” This is light undersized vegetation that covers our entire body. Because we live in favorable conditions, the body signals the bulbs to “moderate their ardor.”
We can smell a trillion scents through our noses.
The eyes perceive 10 million colors.
During the life of the “average” person produces approximately 25 thousand liters of saliva. It would be possible to fill two volumetric pools. Saliva, by the way, maintains oral hygiene. People with impaired synthesis are more likely to experience caries and gum lesions.
The human body is a storehouse of really useful elements. From one average man, for example, you can make 900 pencils (carbon), a nail 8 centimeters long (iron), and more.
Human sweat is odorless. The reason is that some, excuse me, stink – bacteria. When they mix with sweat, a reaction causes an unpleasant odor. Especially if the ambient temperature is high, remember chemistry to understand. Heat often acts as a catalyst.
The tongue has an imprint. And this imprint is unique for each person. Can’t believe it? In vain. You believe in the uniqueness of fingerprints. It’s the same with language. There is even an opinion that shortly, criminals will be fingerprinted accordingly.
Bones became stronger. Only two “cubes” (centimeters cubed) of bone tissue can withstand a load of 8 thousand kilograms.
If you imagine the human eye as a digital camera, you can find out that it would have 576 megapixels. The most expensive camera today boasts a result that is almost half that.
Approximately 1.5-2 kilograms of bacteria “live” on a person. Some are “friendly” with us; others “can’t stand it.” The former helps us, for example, protect against viruses that enter the body and destroy them. Others we successfully wash off in the shower, but then again “collect” from clothes, bed linen, and more.
The length of DNA in the expanded form is approximately 10 billion kilometers. It would be possible to get to Pluto along this conditional thread and then go down.
In our digestive system, there are enzymes that, after the death of the physical body, start a “reverse game” and digest what the worms do not have time to “eat.” Doesn’t work for cremation. This is a natural decomposition mechanism, without which there is no way.
The sensitivity of the fingers of a person who has never worked in hazardous industries with a high vibration level is such that he can feel objects no less than 13 nanometers in size. Here is an example: if such a person could increase his finger to the planet’s size, he would easily distinguish by feeling where the tallest skyscraper is located and where the largest body of water is.
Think the heart is on the left? No. It is located approximately in the center of the chest between the lungs and is slightly inclined to the right.
Taste buds naturally renew themselves every ten days.
On average, one person has an additional rib for every 200 people.
The human mouth is lined with the same cells that line the female vagina.
Our body is designed so that during a lie, the eyes begin to open and close much less often than when it comes to the truth. Immediately after the act of lying, the blinking speed increases by almost ten times.
3% of people do not know how to distinguish between the voices of friends and loved ones.
Humans have a lot fewer genes than tomatoes. It’s not about their number. Everything rests solely on quality. For example, 100 human genes are “smarter” and better than 10,000 greenhouse tomato genes.
A strong cough can force air out of human lungs at a speed of about 600 kilometers per hour. Impressive? Still would.
Several studies confirm that a woman’s breasts who have never “seen” bras will be much more toned than those who wear them regularly. In addition, it is important to note that bras do not help reduce the load on the back and neck.
When we do push-ups or similar work that requires the participation of the fingers, 40% of the load is taken on by the big one. Scientists note that this is the most important finger, the most powerful and enduring.