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Development and function
Underarm hair, as human body hair, normally starts to appear at the beginning of puberty, with growth usually completed by the end of the teen-age years. The evolutionary significance of human underarm hair is still debated. It may naturally wick sweat or other moisture away from the skin, aiding ventilation. Colonization by odor-producing bacteria is thereby transferred away from the skin (see skin flora).
Today in much of the Western world, it is more common for women to regularly shave their underarm hair, but this practice is uncommon among men. The prevalence of this practice varies widely, though. Religious reasons are sometimes cited; for example, some in Islamic culture, both men and women remove underarm hair to meet religious guidelines of cleanliness. Removal of underarm hair was part of a collection of hygienic or cosmetic practices recommended by Muhammad (570-632) as consistent with fitra for both women and men and has since usually been regarded as a requirement by most Muslims. In much of the Western world, men also choose to remove their underarm hair for aesthetic reasons.
Many competitive swimmers remove nearly all of their body hair, including their underarm hair, believing it makes their bodies more streamlined during races. Many male bodybuilders also remove their body hair for cosmetic purposes, as do many (but not all) models in various kinds of erotica.
Seneca the Younger suggests it was common practice in ancient Rome : «One is, I believe, as faulty as the other: the one class are unreasonably elaborate, the other are unreasonably negligent; the former depilate the leg, the latter not even the underarm.» (letter 114).
In the West, the practice began for cosmetic reasons around 1915 in the United States and United Kingdom, when one or more magazines showed a woman in a dress with shaved underarms. Regular shaving became feasible with the introduction of the safety razor at the beginning of the 20th century. While underarm shaving was quickly adopted in some English speaking countries, especially in the US and Canada, it did not become widespread in Europe until well after World War II.
In works of art, the underarm hair is usually removed; showing it is a mark of modernism. This contrasts to the depiction of pubic hair in art, which is rarely portrayed in works created in the Middle Ages, increasingly common in Renaissance art, and quite frequent in modern times.
|Wikimedia Commons has media related to Underarm hair.|
- Paye, Marc; Maibach, Howard I.; Barel, André O (2009). Handbook of cosmetic science and technology (3 ed.). Informa Health Care. p. 703. ISBN 1-4200-6963-2.
- "Compendium of Islamic Texts". USC. Archived from the original on 5 March 2012. Retrieved 24 March 2012.
- Hope, Christine (1982). "Caucasian Female Body Hair and American Culture". Journal of American Culture. 5 (1): 93–99. doi:10.1111/j.1542-734X.1982.0501_93.x.
- Adams, Cecil (1991-02-06). "Who decided women should shave their legs and underarms?". The Straight Dope. Retrieved 2015-01-22.
- Andrew Adam Newman (July 14, 2015). "Women Who Dye Their (Underarm) Hair". The New York Times.
- Weekes, Ann Owens (1993). "Students' Self-Image: Representations of Women in "High" Art and Popular Culture". Woman's Art Journal. 13 (2): 32–38. doi:10.2307/1358151.