Human physical appearance

Human Physical Appearance

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A diverse group of humans showcasing a variety of physical appearances

Human physical appearance is the outward phenotype or look of humans. It includes physical characteristics such as body shape, skin color, hair color, eye color, facial features, and others. These characteristics are influenced by genetic, environmental, and cultural factors.

Genetics and Physical Appearance

Genetics play a significant role in determining human physical appearance. Traits such as eye color, hair color, and skin color are largely determined by genetic factors. For example, the MC1R gene is responsible for red hair color, while the OCA2 and HERC2 genes influence eye color.

Environmental Factors

Environmental factors can also influence human physical appearance. For example, exposure to sunlight can darken skin color, a process known as tanning. Nutrition and physical activity can also influence body shape and size.

Cultural Factors

Cultural factors can significantly influence perceptions of physical appearance. Different cultures have different standards of beauty and attractiveness, which can influence how individuals alter their physical appearance. This can include practices such as cosmetic surgery, makeup, and body modification.

Body Shape

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Different human body shapes

Human body shape is influenced by factors such as genetics, diet, and exercise. There are several different body shapes, including ectomorph, mesomorph, and endomorph. These body types are associated with different physical characteristics and health risks.

Skin Color

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Spectrum of human skin colors

Skin color varies widely among humans and is determined by the amount of melanin in the skin. Skin color can range from very light to very dark, depending on the amount of melanin present.

Hair and Eye Color

Hair and eye color are also determined by genetics. Hair color can range from blonde to black, while eye color can range from blue to brown.

Facial Features

Facial features, such as the shape of the nose, lips, and eyes, are also determined by genetics. These features can vary widely among individuals and populations.

See Also

• Genetics
• Anthropology
• Human variation
• Physical attractiveness