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Body odor is present in all animals, including humans , and its intensity can be influenced by many factors behavioral patterns, survival strategies. Body odor has a strong genetic basis, but can also be strongly influenced by various diseases and physiological conditions. Though body odor has played an important role and continues to do so in many life forms in early humankind, it is generally considered to be an unpleasant odor amongst many human cultures. In humans, the formation of body odors is caused by factors such as diet, gender, health, and medication, but the major contribution comes from bacterial activity on skin gland secretions. Eccrine sweat glands are present from birth, while the two latter become activated during puberty.

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5 Body Odors You Should Never Ignore

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Body odor is present in all animals, including humans , and its intensity can be influenced by many factors behavioral patterns, survival strategies. Body odor has a strong genetic basis, but can also be strongly influenced by various diseases and physiological conditions. Though body odor has played an important role and continues to do so in many life forms in early humankind, it is generally considered to be an unpleasant odor amongst many human cultures.

In humans, the formation of body odors is caused by factors such as diet, gender, health, and medication, but the major contribution comes from bacterial activity on skin gland secretions. Eccrine sweat glands are present from birth, while the two latter become activated during puberty. The genital and armpit regions also contain springy hairs which help diffuse body odors. Body odor is influenced by the actions of the skin flora , including members of Corynebacterium , which manufacture enzymes called lipases that break down the lipids in sweat to create smaller molecules like butyric acid.

Greater bacteria populations of Corynebacterium jeikeium are for example found more in the armpits of men whereas greater population numbers of Staphylococcus haemolyticus are found in the armpits of women. This acid is a breakdown product of some amino acids by propionibacteria , which thrive in the ducts of adolescent and adult sebaceous glands.

Because propionic acid is chemically similar to acetic acid with similar characteristics including odor, body odors may be identified as having a vinegar-like smell by certain people. Factors such as food, drink, and diseases can affect body odor. In many animals, body odor plays an important survival function.

Strong body odor can be a warning signal for predators to stay away such as porcupine stink , or it can also be a signal that the prey animal is unpalatable. Some animals with strong body odor are rarely attacked by most predators, although they can still be killed and eaten by birds of prey, which are tolerant of carrion odors.

Body odor is an important feature of animal physiology. It plays a different role in different animal species. For example, in some predator species that hunt by stalking such as big and small cats , the absence of body odor is important, and they spend plenty of time and energy to keep their body free of odor.

For other predators, which use endurance running after the visually located prey as a hunting strategy dogs , wolves , the absence of body odor is not critical.

In most animals, body odor intensifies in moments of stress and danger. Sebaceous and apocrine glands become active at puberty. This, as well as many apocrine glands being close to the sex organs, points to a role related to mating. Humans can olfactorily detect blood-related kin. Preadolescent children can olfactorily detect their full siblings, but not half-siblings or step-siblings, and this might explain incest avoidance and the Westermarck effect.

Humans have few olfactory receptor cells compared to dogs and few functional olfactory receptor genes compared to rats. This is in part due to a reduction of the size of the snout in order to achieve depth perception as well as other changes related to bipedalism. However, it has been argued that humans may have larger brain areas associated with olfactory perception compared to other species.

Studies have suggested that people might be using odor cues associated with the immune system to select mates. Using a brain-imaging technique, Swedish researchers have shown that homosexual and heterosexual males' brains respond in different ways to two odors that may be involved in sexual arousal, and that homosexual men respond in the same way as heterosexual women, though it could not be determined whether this was cause or effect. When the study was expanded to include lesbian women; the results were consistent with previous findings meaning that lesbian women were not as responsive to male-identified odors, while their response to female cues was similar to heterosexual males'.

Body odor is largely influenced by major histocompatibility complex MHC molecules. These are genetically determined and play an important role in immunity of the organism. The vomeronasal organ contains cells sensitive to MHC molecules in a genotype-specific way.

Experiments on animals and volunteers have shown that potential sexual partners tend to be perceived more attractive if their MHC composition is substantially different.

Married couples are more different regarding MHC genes than would be expected by chance. This behavior pattern promotes variability of the immune system of individuals in the population, thus making the population more robust against new diseases.

Another reason may be to prevent inbreeding. The ABCC11 gene determines axillary body odor and the type of earwax. Body odor may be reduced or prevented or even aggravated by using deodorants , antiperspirants , disinfectants , underarm liners , triclosan , special soaps or foams with antiseptic plant extracts such as ribwort and liquorice , chlorophyllin ointments and sprays topically, and chlorophyllin supplements internally.

Although body odor is commonly associated with hygiene practices, its presentation can be affected by changes in diet as well as the other factors. The condition can be known medically as bromhidrosis, apocrine bromhidrosis, osmidrosis, ozochrotia, fetid sweat, body smell, or malodorous sweating. Osmidrosis or bromhidrosis is defined by a foul odor due to a water-rich environment that supports bacteria, which is caused by an abnormal increase in perspiration hyperhidrosis.

In this case, the condition may be referred to an axillary osmidrosis. Trimethylaminuria TMAU , also known as fish odor syndrome or fish malodor syndrome, is a rare metabolic disorder where trimethylamine is released in the person's sweat, urine, and breath, giving off a strong fishy odor or strong body odor. From Wikipedia, the free encyclopedia.

Odor produced by a living animal. See also: Biochemistry of body odor. See also: Pheromone. See also: Major histocompatibility complex and sexual selection , Body odor and subconscious human sexual attraction , and ABCC Academic Press. Retrieved 3 April The encyclopedia of skin and skin disorders 3rd ed. New York: Facts on File. Journal of Investigative Dermatology.

Bibcode : PNAS Sherratt, and Michael P. Avoiding attack. The evolutionary ecology of crypsis, warning signals, and mimicry. Frontiers in Behavioral Neuroscience. Craig Roberts and Jan Havlicek. In Roberts, S. Roberts, S. Craig ed. Applied Evolutionary Psychology. Oxford University Press. Biological Psychology. Physiol Behav. Journal of Experimental Child Psychology. International Journal of Cosmetic Science. BMC Genetics. For appearance' sake: The historical encyclopedia of good looks, beauty, and grooming.

Phoenix: Oryx Press. Michael The scented ape: The biology and culture of human odour. Cambridge: Cambridge University Press. Retrieved Archived from the original on Andrews' Diseases of the Skin: Clinical Dermatology. Fitzpatrick's Dermatology in General Medicine. Medical News Today. ICD - 10 : L Disorders of skin appendages L60—L75 , — Hirsutism Acquired localised generalised patterned Congenital generalised localised X-linked Prepubertal. Perioral dermatitis Granulomatous perioral dermatitis Phymatous rosacea Rhinophyma Blepharophyma Gnathophyma Metophyma Otophyma Papulopustular rosacea Lupoid rosacea Erythrotelangiectatic rosacea Glandular rosacea Gram-negative rosacea Steroid rosacea Ocular rosacea Persistent edema of rosacea Rosacea conglobata variants Periorificial dermatitis Pyoderma faciale.

Folliculitis Folliculitis nares perforans Tufted folliculitis Pseudofolliculitis barbae Hidradenitis Hidradenitis suppurativa Recurrent palmoplantar hidradenitis Neutrophilic eccrine hidradenitis.

Acrokeratosis paraneoplastica of Bazex Acroosteolysis Bubble hair deformity Disseminate and recurrent infundibulofolliculitis Erosive pustular dermatitis of the scalp Erythromelanosis follicularis faciei et colli Hair casts Hair follicle nevus Intermittent hair—follicle dystrophy Keratosis pilaris atropicans Kinking hair Koenen's tumor Lichen planopilaris Lichen spinulosus Loose anagen syndrome Menkes kinky hair syndrome Monilethrix Parakeratosis pustulosa Pili Pili annulati Pili bifurcati Pili multigemini Pili pseudoannulati Pili torti Pityriasis amiantacea Plica neuropathica Poliosis Rubinstein—Taybi syndrome Setleis syndrome Traumatic anserine folliculosis Trichomegaly Trichomycosis axillaris Trichorrhexis Trichorrhexis invaginata Trichorrhexis nodosa Trichostasis spinulosa Uncombable hair syndrome Wooly hair Wooly hair nevus.

Body odor Chromhidrosis Fox—Fordyce disease. Sebaceous hyperplasia. Categories : Animal physiology Hygiene Immunology Odor. Hidden categories: Articles with short description All articles with unsourced statements Articles with unsourced statements from July Wikipedia articles with GND identifiers Wikipedia articles with NDL identifiers.

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Native American.

7 things your body odor might be trying to tell you

Whether you hit the gym every day, work long shifts at the office or hang out with friends a ton, there's a good chance you spend a lot of time surrounded by other people. And that's exactly why your body odor needs to be under control—no one wants to be around someone with swamp pits. Luckily, good deodorants and antiperspirants help with just that. Deodorants eliminate smells caused by bacteria that form in your moist underarms, while antiperspirants prevent sweat from forming so bacteria can't grow.

Just walk in and get the care you need. The services you need to keep your employees healthy.

Dear Mayo Clinic : I am a young, healthy woman with a slightly embarrassing problem. I have unusually strong body odor. It is most noticeable under my arms, but I also notice it in my feet. I do not sweat excessively.

The 14 Best Deodorants for Men to Stay Fresh

The attractive powers of pheromones scented sex hormones have often been exaggerated — not least by advertisers trying to sell pheromone-based scents and sprays which they claim will make men irresistible to women. Widely publicised research findings on female sensitivity to male pheromones have also led some men to believe that the odour of their natural sweat is highly attractive to women. Women are indeed highly sensitive to male pheromones, particularly around ovulation, but many popular assumptions about the effects of these pheromones are the result of misinterpretation and over-simplification of the research results. All male pheromones are not equally attractive, and some of the myths stem from an understandable confusion over their names. The male pheromone androstenone is not the same as androstenol. Androstenol is the scent produced by fresh male sweat, and is attractive to females. Androstenone is produced by male sweat after exposure to oxygen — i. Generally, the female-repelling androstenone is the more prominent male body odour, as the fresh-sweat odour of androstenol disappears very quickly.

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In most cases, a simple shower, swipe of deodorant, or line of minty-fresh toothpaste could remedy the situation. In fact, some diseases can actually produce a unique, distinguished odor , according to a recent Swedish study.

The Strong Man : A powerful story of life under fire and one man's journey back from the brink. Grant Edwards. His Guinness Book of Records feats of strength were acclaimed internationally, and as a high ranking police officer he spent decades protecting vulnerable people around the world.

The Smell Report

Keeping that B. The key to finding the best deodorants for body odor is to understand exactly what causes the stink. Stinky pits and body odor in general happen when the bacteria on your skin mixes with sweat and produces a putrid acid.

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Pit Stank Got You Down? Check Out The 5 Best Deodorants For Body Odor. Period.

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more than three hundred years hefore Christ: " The highest object of man is the conclusion that our giant is mentally below par because he is strong of body

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Comments: 3
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