Why is the armpit smelling

Why is the armpit smelling "harder to smell" than other parts of the body? Because millions of millions of bacteria need to have somewhere to live. And unfortunately for the armpit, bacteria really like that place .

>>>The scent "scares away fellow"

First of all, it is necessary to understand sweat, endocrine glands and odor types:

Endocrine glands

Endocrine is present in almost all body parts and sweating. Sweat itself is a sterile solution, diluted electrolyte solution mainly contains sodium chloride (NaCl), potassium and carbonate acid .

Most of us are familiar with the theory that endocrine glands produce sweating: "This excretory activity is ongoing to provide a mechanism for regulating heat through evaporation, heat loss and maintenance. electrolyte balance . "

The endocrine glands "fall head"

This type of gland is found in parts of hair, hair on the body, such as armpits and groin (between legs). Near the surface of the skin, inside the hair follicle, the "head" sweat gland (also known as odor) is secreted . It is a opaque white liquid, most commonly produced when you are under stress or in intense activity. This liquid has no odor.

Although there is no odor, the sweat glands in the head are very rich in precursors of aromatic substances (such as cholesterol, triglycerides or triglycerides, fatty acids, esters of cholesterol, squalene). It also contains androgen, carbohydrate, ammonia and iron III hormones.

In addition, this gland produces hormones, which are chemical signals that stimulate behavioral responses (such as sexual attraction).

Armpit odor

At any given time, there are up to 100,000,000,000,000 (one hundred trillion) bacteria living on your body. So, of course, there will be many bacteria wandering down your armpits. Armpit is the "granary" of bacteria. On each square centimeter in the armpit, about one million bacteria live.

The bacteria will "eat" these precursors, especially those containing Corynebacterium spp., Staphylococcus spp, Micrococcus spp and Propionbacterium spp, and depending on food choices, unpleasant odors may start being produced.

" The sulfur-containing molecules are the worst, causing the armpit to smell very nauseating, the characteristic smell like onion. Two hormones androstenol (that is musk) and the chemical androstenone can also contribute to The process of odor formation, isovaleric acid and propionic acid also contribute to the smell, they smell like sweat sweat. "

Detect cancer thanks to a characteristic odor

Researchers have determined that some mammals are born and have distinct odors. The smell of each individual is determined in part by the genes in the Main Tissue Compatibility Complex (MHC), which has a very important role in the immune system.

The unique and unique smell of an individual helps others recognize him, and it seems, that odor cannot be changed, no matter how much garlic and dill we eat. In behavioral tests, sensor-mounted mice were trained to use their sense of smell to choose between test mice with different MHC genes, diet or normal diet.

The results showed that congenital smells still exist no matter what the mice eat, even if the diet changes strongly to the smell of mice. Both sensor-attached mice and chemical analyzers can detect the basic odor groups inherent from birth.

The study authors conclude that: "If this can prove to humanity, it will open possibilities such as developing devices that can detect each person's distinctive characteristic odor."

Later studies have discovered what kind of epidemics a person is carrying by taking advantage of the skillful senses of dogs. For example, the Belgian Malinois has been trained to detect scent and recognize urine of people with PCa (suffering from prostate cancer). After a 24-month learning and training period, the dog was able to distinguish those who had Pca. Later tests showed that dogs correctly detected cancer samples in 30 of the 33 cases.

Fishy smell syndrome

Some people are miserable with the smell of their body smelling like fish. Called a human syndrome with fish odor (trimethylaminuria syndrome) , these people are experiencing trimethylamine metabolic disorder . Compounds that smell like fish are often found in these people.

For people with fish odor syndrome, that unpleasant odor comes from their "sweat, urine and breath" . These cases may be isolated and ridiculed by people.

Fish odor syndrome (Trimethylaminuria) is a rare genetic disease that occurs only in those who inherit two copies of defective genes, one gene from father and one gene from their mother. It is estimated that 1 in 10,000 people suffer from this syndrome.