Male netizens asked:
At school, girls always felt a scent as they walked past me, but I asked my female friends, and they didn't feel anything about themselves, they couldn't smell anything at all. I asked my roommate again, and they said that 2 female classmates in the class had a milky smell on their bodies. Do girls have a scent on them? Or is it my delusion?
Speaking of body fragrance, it is estimated that the first picture that comes to mind by many people is the classic scene of the incense concubine with body fragrance in "Huan Zhu Ge Ge" that attracts butterflies when dancing, so what is body fragrance? Where does the body fragrance come from? I'll talk to you today.
<h1 class="pgc-h-arrow-right" data-track="6" >. </h1>
Regarding the source of body fragrance, there is no clear conclusion at present, and there are two more mainstream theories.
The first theory is that body fragrance is mainly because of the sex hormones contained and released in the human body, and the results of the interaction with some chemical components in the diet, which can change with the growth of age, with the most concentrated stage of puberty development, the most obvious feelings of the opposite sex, but they generally cannot smell it.
The second theory is that body fragrance is a mixture of secretions from a variety of glands, the most important of which is the secretion of the sweat glands. It should be noted that yes, everyone secretes sweat contains a certain amount of "butyrate", if the concentration is relatively thin, it may show aromatic body odor; if the concentration is very large, there may be a fishy smell, odor, into body odor.
Pheromones secreted from the human sweat glands, also known as exohormones (male polydyrinodienone, female estradiol), are secreted outside the body and can show some behavioral, emotional, psychological, or physiological mechanism changes if detected by other individuals of the same species through the olfactory organs. But the taste of pheromones and secretions is really too weak, it is difficult for people to smell through the olfactory organs, so the above statements have not been agreed upon, and there is no large data support, which can only be used as a reference.
If it is not the smell of extratropic hormones or skin glandular secretions, what would be the smell of "body odor"?
In fact, the body fragrance is likely to be "pickled" into the taste, and the various spices in daily cosmetics cover the surface of the skin and emit fragrance.
The "body odor" that everyone often smells is likely to come from the following chemicals.
The first category: aldehyde fragrances, representative substances are citral, laural, phenylacetaldehyde, etc., widely used in flavors, fragrances, perfumes.
The second category: alcohol fragrances, representative substances are menthol, lavender alcohol, geraniol, etc., is the main component of peppermint oil, lavender oil, rose fragrance.
The third category: ester fragrances, representative substances are benzyl acetate, coriander acetate, isoamyl salicylate, etc., often used as soap, shampoo products perfume.
In addition, there are lactones, ketones, polycyclic, heterocyclic, hydrocarbons, acids and other substances, which can be adjusted to thousands of fragrances. These chemicals are widely present in daily chemical products, and after a long time of use, they may form their own unique fragrance and become a "fragrant" woman.
Therefore, the body fragrance is likely to be just "pickled" into the taste, not born with its own. But it is undeniable that because of the existence of multiple factors, each person's body odor is unique.
<h1 class="pgc-h-arrow-right" data-track="6" > Second, why does everyone have a different body odor? </h1>
Studies have shown that everyone's body odor is mainly from sweat, and the reason why sweat can form a unique body odor is related to genes and microorganisms in the human body.
Generally speaking, most European and African people are taller and rougher, and their body odor is stronger, while Asians have changed the ABCC11 gene on their chromosomes, resulting in reduced sweat gland secretion and a fainter odor.
When sweat is secreted, the microorganisms parasitic on the surface of the skin are decomposed to produce odorous compounds, so under the dual action of genes and microorganisms, we obtain our own unique odor.
However, some people do not like their body odor, because if they are not careful, the taste may become underarm odor.
<h1 class="pgc-h-arrow-right" data-track="6" > third, control the underarm odor, give you support</h1>
Axillary odor is mainly made from a mixture of volatile organic compounds, volatile fatty acids (VFAs) and thiols are the main components, especially thiols, although in trace amounts, but the most pungent. And when there is a underarm odor, it is really embarrassing, so it is very important to solve it in time.
First of all, we should pay attention to keeping the armpits clean, bathing frequently, keeping the local dryness, and it is usually best to wear some loose, breathable clothing to reduce sweating and prevent underarm odor.
Secondly, it is also possible to control body odor by reducing the evaporation of sweat by removing hair, or to reduce the interaction of sweat with bacteria through deodorants or antiperspirants.
Finally, it can also be removed by some medical aesthetic methods, such as injecting botulinum toxin. However, it is not a one-time project and requires multiple treatments according to individual circumstances.
Through the above introduction, we can find that the body fragrance is not as mysterious as everyone imagines, and very few people have their own body fragrance, which is generally "pickled" out of daily chemical products. Most people just need to keep the most basic clean and tidy, if you like to spray perfume, you can spray some perfume and the like!
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Resources:
[1] Do people really have body odor? How can I produce body odor?. Digital Beijing Science Center .2019-02-24
[2] Bring your own body fragrance? It may be that the cosmetics are "pickled" into the taste. The Paper.2020-06-05
[3] The mystery of human body odor, your incense?. MedSci Metz.2020-08-05
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