Human physical appearance
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Human physical appearance is the outward phenotype or look of human beings. There are infinite variations in human phenotypes, though society reduces the variability to distinct categories. Physical appearance of humans, in particular those attributes which are regarded as important for physical attractiveness, are believed by anthropologists to significantly affect the development of personality and social relations. Humans are acutely sensitive to their physical appearance, some[who?] theorize for reasons of evolution. Some differences in human appearance are genetic, others are the result of age, lifestyle or disease, and many are the result of personal adornment.
Some people[who?] have traditionally linked some differences in that personal appearance such as skeletal shape with ethnicity, such as prognathism or elongated stride. Different cultures place different degrees of emphasis on physical appearance and its importance to social status and other phenomena.
Factors affecting physical appearance
Various factors are considered relevant in relation to the physical appearance of humans.
Humans are distributed across the globe with exception of Antarctica, and form a very variable species. In adults, average weight varies from around 40 kilos for the smallest and most lightly built tropical people to around 80 kilos for the heavier northern peoples. Size also varies between the sexes, the sexual dimorphism in humans being more pronounced than that of chimpanzees, but less than the dimorphism found in gorillas. The colouration of skin, hair and eyes also varies considerably, with darker pigmentation domination in tropical climates and lighter in polar regions.
- Genetic, ethnic affiliation, geographical ancestry.
- Height, body weight, skin tone, body hair, sexual organs, moles, birthmarks, freckles, hair color, hair texture, eye color, eye shape (see epicanthic fold), nose shape (see nasal bridge), ears shape (see earlobes), body shape
- Body deformations, mutilations and other variations such as amputations, scars, burns and wounds.
Long-term physiological changes
Short-term physiological changes
- Blushing, crying, fainting, hiccup, yawning, laughing, stuttering, sexual arousal, reddening of the skin due to increased blood flow due to exertion. Sweating, shivering, nose bleeding, skin color changes due to sunshine or frost.
Clothing, personal effects, and intentional body modifications
- clothing, including headgear and footwear; some clothes alter or mold the shape of the body (e.g. corset, support pantyhose, bra). As for footwear, high heels make a person look taller.
- style and colour of haircut (see also mohawk, dreadlocks, braids, ponytail, wig, hairpin, facial hair, beard and moustache)
- cosmetics, stage makeup, body paintings, permanent makeup
- body modifications, such as body piercings, tattoos, scarification, subdermal implants
- plastic surgery
- decorative objects (jewelry) such as a necklaces, bracelets, rings, earrings
- medical or body shape altering devices (e.g., tooth braces, bandages, casts, hearing aids, cervical collar, crutches, contact lenses of different colours, glasses, gold teeth). For example, the same person's appearance can be quite different, depending on whether they use any of the aforementioned modifications.
- exercises, for example, bodybuilding
Other functional objects, temporarily attached to the body
- Electronics (e.g. PDA, cell phone, DAP)
- Hair ornaments
- Hats and caps
- Headphones/Handsfree phone headset
- Prosthetic limbs
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- Body image
- Common human variations
- Erotic capital
- Face perception
- Facial symmetry
- Female body shape
- Hair coloring
- Physical attractiveness
- Recognition of human individuals
- Sexual attraction
- Sexual selection
- Social aspects of clothing
- Social role of hair
- "Anthropometric Reference Data for Children and Adults: United States, 2003–2006" (PDF). Retrieved 9 March 2014.
- Shea, Brian T. (1985). "The ontogeny of sexual dimorphism in the African apes". American Journal of Primatology. 8 (2): 183–188. doi:10.1002/ajp.1350080208.