Why have two nostrils?

In addition to beautifying the face or being used for breathing, the nose also helps you find a lover or make your body slimmer. And that's just one of the magic of the nose.

People still question, why are nostrils two and not one? This work has been explained by some works of the nose.

First , the person with two lungs, whose nose is used to breathe, absorbs oxygen, breathes in CO2. Each side of the lungs is controlled by a corresponding nostril. Suppose, the left nostril is blocked, the left lung will not be able to breathe, then, the body mainly thanks to the help of the right lung to carry out gas exchange. Research shows that when a closed nostril cannot ventilate, a series of reflex mechanisms protect the nose from happening, causing the body to remain breathing, and the respiratory system will completely shift to a hole. another nose.

Secondly , the two nostrils make the body more active and respirable, promoting the whole metabolism.

Third , two respiratory nostrils can take turns to rest, a continuous nostril is very tiring. Studies also show that if you only use a nostril to breathe continuously for 3 hours, your body will feel tired.

The nose also knows how to lie. (Photo: VNE) And finally, two nostrils help ease sleep. Experiments show that, when breathing lasts continuously for more than 8 hours, if sleeping in an unchanged position, one side of the nostril is often clogged, then it is difficult to sleep, because this time compared to standing or sitting , nasal physiology changes. Therefore, the human nose has two holes to meet the physiological needs, which have the effect of making sleep comfortable.

Left and right nostrils are different

The function of the left nostril and the right nostril has some subtle but very miraculous differences, especially the left and right nostril senses are not quite the same.

Studies and tests of nose odor test show that when using nostrils to smell something, we often have the evaluation of "rushing" more. If using the left nostril to distinguish the odor, the result will be more accurate. For example, a wine reviewer who can smell right with a right nostril can easily score high, but using the left nostril is easy to get close to reality.

This is explained: The left and right nostrils are receiving the dominance of the corresponding cerebrum. The right hemisphere controls the senses, so the nostrils must be mixed with emotional nuances; but the left nostril is governed by the left hemisphere so it will tilt according to reason and reality. Of course, this difference is very small, not so much a phenomenon: it smells an object, but a nostril is said to be pepper, while another hole smells coca cola.

The study also showed that the breathing of the left nostril and the nostril must have different effects on the state of the person. When using the right nostril to breathe, the brain is easily excited, nervous in a state of urgency. And the left nostril often breathes in a human state that feels gentle and calm.

The study also showed that the human left and right nostrils performed circulating breathing, in medicine called nasal circulation. The circulatory cycle of two nostrils is about 2.5-4 hours; The older the age, the longer the circulation. This cycle can last up to 8 hours. Thus, the Creator has given humans with two nostrils to benefit the principle of rest, while humans can use this secret to protect their health. For example, when the body feels urgent, it is necessary to consciously use the left nostril to breathe, to help the body gradually return to a light, pleasant state.

German experts also found that people with a long and large nasal cavity have the better sense of smell, which is very beneficial for their ability to smell. The nose is large and the odor area is wide and the smell is fast. But also need to see that, good or bad smell is also related to the quality of life. For example, people who live in conditions that must always be exposed to food spoiled, rotten, harmful items . will gradually damage the sense of smell.

The nose also lied

Investigators have speculated that Bill Clinton is lying when he explains his relationship with intern Monica Lewenski, because he constantly touches his nose. Studies have shown that when a person lied, the cell organization in the nasal cavity may be congested, causing a red nose to rise, causing itching, scratching the hand.

However, some studies show that the nose itself can lie. British scientists have found that the sense of smell is susceptible to harassment of a hormone called "auxiliaries". After the nose inhaled, the human will increase good feelings and trust with the opponent. Therefore, some experts have done experiments with people with communication skills disabilities: Just inhale some of the auxiliaries (like smoking with the nose) before leaving the house, they will become boldly respond when communicating, especially when meeting with a girlfriend, boss recruiting staff or when exchanging, negotiating .

Nose looking for lover

Studies show that one of the methods of finding a lover ensures the superior goal is to use the nose to detect the smell of a lover's body to see if it is similar or different. This can help prevent the possibility of having a relative of a relative.

American researchers have discovered: The body odor of girls is often similar to the smell of a father, but men are different. The odor that the human body emits is called "information substance", which is influenced by a series of correlated genes of the immune system. So if the smell of a boy is similar to the smell of a girl's father's body that he intends to love, he will have an immune system similar to the girl herself. Thus, if they get married, the offspring will not have superiority. This is one of the manifestations of the profound miracle of two nostrils.

Nose helps reduce fat

Originally, the nose after filtering and analyzing the inhaled smell will bring the smell information quickly to the middle of the brain to control hunger; Its transfer rate compared to digestive systems is much faster. Research materials said that in judging whether people are hungry or not, the reflection of the nose against the abdomen is much more sensitive. So, if you find a "fool" smell that makes it misleading to the brain, inhibiting appetite, can reduce the amount of food put into meals, help reduce fat effectively.

Japanese researchers also discovered the smell of four types: peach pomelo, pepper powder, repatriation and bare-hearted people with the ability to reduce fat. They conducted the test as follows: Bringing these odors into the cosmetic chemistry, for some groups of women, each group of 20 people, sniffed gently every day for a month. Results showed that 70% of them had a waist circumference of more than 2 cm, the rest also had a waist circumference of more than 1 cm. This result has opened a new way for people to lose weight.