# Human physical appearance

Human physical appearance is the outward phenotype or look of human beings.
There are functionally infinite variations in human phenotypes, though society reduces the variability to distinct categories. The physical appearance of humans, in particular those attributes which are regarded as important for physical attractiveness, are believed by anthropologists to affect the development of personality significantly and social relations. Many humans are acutely sensitive to their physical appearance. 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 have linked some differences with ethnicity, such as skeletal shape, prognathism or elongated stride. Different cultures place different degrees of emphasis on physical appearance and its importance to social status and other phenomena.

## Aspects

Various aspects are considered relevant to the physical appearance of humans.

### Natural differences in body appearance

Humans are distributed across the globe except for Antarctica and form a variable species. In adults, the average weight varies from around 40 kg (88 pounds) for the smallest and most lightly built tropical people to around 80 kg (176 pounds) for the heavier northern peoples. Size also varies between the sexes, with 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 dominating in tropical climates and lighter in polar regions.
The following are non-exhaustive lists of causes and kinds of variations which are completely or partially unintentional.
Examples of unintential causes of variation in body appearance:
* Development of the human body and ageing
* Disease and injury
* Genetic variation
* Sex differences
Examples of general anatomical or anthropometric variations:
* Body shape and proportions
* Body weight
* Height
Examples of variations of specific body parts:
* Body hair
* Ear (see earlobes)
* Face
** Eye
*** Eye color
*** Eye shape (see epicanthic fold and eyelid variations)
** Nose (see nasal bridge)
* Hair
** Baldness
** Hair color
** Hair texture
* Sex organs
** Penis size
* Skin
** Skin color
There are also body and skin unconventional variations such as amputations or scars.

### Short-term physiological changes

* Blushing, crying, fainting, hiccup, yawning, laughing, stuttering, sexual arousal, sweating, shivering, 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 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

* Capes
* Goggles
* Hair ornaments
* Hats and caps
* Headdresses
* Headphones/handsfree phone headset
* Jewelry
* Masks
* Prosthetic limbs
* Sunglasses
* Watches