Have a good boyfriend
Go to work refreshingly during the day
The smell of sweat at night will return home
The same is crowded on the bus
Standing among a group of men and among a group of women
Men’s Sweat VS Women’s Sweat
Is it really different?
The smell of sweat is heavy, is there a solution?
Sweat
It is an important means for the body to regulate body temperature
Whether man or woman
99% of sweat is actually water
Human sweat
Thanks to two great heroes[1]
● Eccrine sweat glands (eccrine glands)
There are millions of them, all over the skin
Most on palms and feet
● Apocrine sweat glands (apocrine glands)
Mainly distributed in the armpit, areola, anus and perineum, etc.
Enclose damp areas
And sweat mixed with odor
It is mainly the bacteria in the sweat glands that are making trouble
Especially in places with many apocrine glands
There are a lot of fungus communities here
As soon as it encounters sweat, it is rancidized by bacterial enzymes
Producing carboxylic acid and sulfide gas
Smells so bad…
Look! A group of bacteria is dancing on the grave
(Source: BBC documentary “Life on the Human Body”)
And the hands, face and other parts
No matter how much you sweat, it usually doesn’t stink
Because they are exposed
Not easy to breed bacteria
Overall
The smell of a sweaty “smelly man”
Mainly armpits, chest, feet, etc.
Bacteria-rich parts
A person with high oil secretion
Also more prone to sweat odor
Especially the scalp and other parts
The smell of sweat! Who! by! have to! !
Actually
People smell the same way and have similar ingredients
only the concentration is different
Then why do we always think men stink?
Currently, scientists propose these possibilities [2-4]
1. Women’s “Special” Features
Women are not only better at detecting odors
Also more sensitive to odors on the opposite sex
2. Men’s apocrine glands are more developed than women’s
Human body odor is mainly emitted by the apocrine glands
apocrine glands are greatly affected by androgen stimulation[8]
And from puberty
Men have higher androgen levels than women
So men’s body odor is naturally heavier
3. Interference by dietary factors
Some men prefer smoking and drinking
Also has a greater impact on body odor
Research also found that meat intake
Changes the composition and secretion of fatty acids in the armpit[5]
Meat eater, take it easy~
Eating too much food like peppers, onions, garlic, etc.
Also affects body odor
Men and women should pay attention~
4. Living habits
Girls love cleanliness, bathe and change clothes frequently
Bacteria multiply naturally too slowly
Girls like to spray perfume and apply skin care products
covers body odor to some extent
Sensitivity to “smell”
In the end, it’s a more personal experience
It carries the pheromone of human emotions
affected by emotion and subjective feelings
A girl on the Internet shared her own experience
Oh, a fickle woman~
Many animals choose mates by smell
Smell is an exchange of pheromones[6]
(Source: BBC documentary Life on the Human Body)
So
Maybe your boyfriend smells “stinky”
It is his unique masculinity~
(Source: giphy.com)
In order to reduce the number of times the “smelly sweaters” are disliked
On the principle of saving money and effort
Please keep this Guide to Removing Sweat and Odor
1. Rinse carefully
Remember these areas to focus on cleaning
Scalp, underarms, pubic area (especially for women)
2. Clothes that absorb sweat
Summer can choose cotton material clothes
Boys wear a vest
Easier to dissipate heat and sweat
3. Deodorant focus – armpits and feet: antibacterial + antiperspirant
You can use antibacterial soap
Pre-spray antiperspirant (especially in the armpits)
You can also use desiccants containing zinc oxide powder, talcum powder
Change socks frequently for sweaty feet
4. Eat less food that stimulates sweating
Put down the glass and cigarette butts
Stay away from spicy, strong-smelling foods
Of course, if the sweat smells bad
with a sufficient budget
You can also visit the hospital dermatologist
Doctors may recommend medication
For example, underarm injection of botulinum toxin inhibits sweat gland secretion
However, this therapy can only last for a short period of 2-8 months
Severe patients if medication fails
The doctor may recommend surgery to remove the apocrine glands
To achieve the purpose of radical cure
Finally, we also summarize a few sweating problems that men and women are concerned about, let’s take a look at the answers!
1. Can sweating detoxify?
There is no poison in sweat. Remember, the only physiological meaning of sweating is to “dissipate heat” and keep a person’s body temperature constant at around 37°C. Do not believe the claim that sweating and steaming can detoxify!
2. Excessive sweating during exercise is good for the skin?
Many people feel that their complexion is smooth and their skin is tender and smooth after exercising and sweating a lot. This is because the excretion of a large amount of sweat increases the hydration of the skin surface, which is only a short-term effect. After a while, how should the skin be?
Of course, exercise is a good thing, and being able to sweat while exercising is a plus. However, deliberately pursuing sweating and wearing sweaty clothes may lead to hypokalemia and limb weakness due to excessive sweating [9].
3. Can I take a shower immediately after exercising and sweating?
It is recommended that after exercising, take a half-hour rest before taking a shower. Immediately after exercising, the blood vessels of the human skin expand. If you take a bath immediately, it will cause the skin blood vessels to constrict, which will block heat dissipation and increase body temperature.
You might as well take a bath before taking a bath. It is best to use warm water, about 39°C in summer (at room temperature of 25°C in the bathroom) and about 42°C in winter (at room temperature of 14°C in the bathroom). [10].
4. Does sweating a lot mean that the body is “empty”?
In fact, most people suffer from “increased physiological sweating”, such as sweating a lot during exams, when a date is tense, sweating a lot when eating, and sweating a lot on the palms and feet. It’s normal and has nothing to do with the disease.
However, diabetic patients should be careful, 50% of type 1 diabetic patients have sweating disorders, and if sweating is significantly increased, blood sugar needs to be monitored [7].
If at normal room temperature, if you sweat so much that the sheets and bedding must be changed, it may be the so-called “night sweat”, also known as drenching sweat, and it is recommended to go to the hospital Further examination. Because this may be related to infectious diseases (most commonly tuberculosis), neurological diseases, tumors, hyperthyroidism, etc.
So, today, have you been “stinky” by a man?
References
[1]Chen Fuhuan, Song Huifeng, Wang Tongmin, He Xiuye, Yue Xiaotong. Research progress of sweat gland cells in human skin trauma and repair [J]. Chinese Aesthetic Medicine, 2015,24(19 ):73-77.
[2]Probst F, Fischbacher U, Lobmaier JS, Wirthmüller U, Knoch D. Men’s preferences for women’s body odours are not associated with human leucocyte antigen. Proc Biol Sci. 2017 Oct 11; 284(1864).
[3]Clutton-Brock TH, Parker GA. 1992. Potential reproductive rates and the operation of sexual selection. Q. Rev. Biol. 67, 437C456.
[4]Trivers R. 1972. Parental investment and sexual selection. In Sexual selection and the descent of man (ed. Campbell B, editor. ), pp. 136C179. Chicago, IL: Aldine-Atherton.
[5]Havlicek J, Lenochova P. The effect of meat consumption on body odor attractiveness［J］． Chem Senses, 2006, 31(8): 747752.
[6] Tai Fadao, Sun Ruyong. Human odor and its function[J]. Advances in Physiological Science, 2002(01):61-64.
[7] Xu Manyin, editor-in-chief. Diabetes 2nd Edition [M]. Shanghai Science and Technology Press: Shanghai, 2010: 435-445.
[8] Martin A, Hellhammer J, Hero T, et al. Effective prevention of stressinduced sweating and axillary malodour formation in teenagers[J]. International journal of cosmetic science, 2011, 33( 1): 90-97.
[9] He Zongyi, He Qiongfeng, Deng Cuijuan, et al. Clinical study of 326 cases of hypokalemiaAnalysis[J]. Chinese Journal of Clinical Medicine, 2004, 5(10): 45-45.
[10]Kawahara Y, Nagata M, Niimi Y, et al. Effects of bath water and bathroom temperatures on human thermoregulatory function and thermal perception during half-body bathing in winter[J]. Environmental Ergonomics, 2005, 3: 171-76.
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