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Smell as evidence of disease has been long used, dating back to Hippocrates around 400 years BCE. [1] It is still employed with a focus on volatile organic compounds (VOCs) found in body odor. [ 2 ] VOCs are carbon-based molecular groups having a low molecular weight, secreted during cells' metabolic processes. [ 3 ]
In one review, 85% of reported cases had traumatic, smell-related experiences, and 17% of cases had stress factors unrelated to smell. [2] Reported smell-related experiences usually revolve around family members, friends, co-workers, peers or other people making comments about an odor from the person, which causes embarrassment and shame. [2]
Similarly, humans have been seen to distinguish age-related information from body odor, particularly relating to odors of those of old age. In a study determining if there is a difference between the body odor of individuals of various ages, three groups were studied: those aged 20-30, aged 45-55, and aged 75-95, corresponding to young age ...
Sweat and body odor are typically thought to go hand in hand, but experts say it's a little more complicated than that. Sweat alone doesn't have a smell, according to Harvard Health.
A fish-like body odor can result from extreme excess consumption of TMA precursors such as choline, carnitine and betaine (usually unobtainable via regular dietary intake, it requires high levels of supplement intake). 900mg of trimethylamine, [34] 8g-20g of choline, [35] 3g of carnitine [36] or 20g betatine [37] has been known to cause ...
Body odor encompasses axillary (underarm) odor and foot odor. [1] It is caused by a combination of sweat gland secretions and normal skin microflora. [1] In addition, androstane steroids and the ABCC11 transporter are essential for most axillary odor. [1] [2] Body odor is a complex phenomenon, with numerous compounds and catalysts involved in ...
Age is the strongest reason for olfactory decline in healthy adults, having even greater impact than does cigarette smoking. Age-related changes in smell function often go unnoticed and smell ability is rarely tested clinically unlike hearing and vision. 2% of people under 65 years of age have chronic smelling problems.
Social media users are using the heat wave as a chance to point out many Asians simply don’t smell. According to experts, there’s actually a gene mutation behind it.