In particular, African hair was demonstrated to have more lipids that are highly disordered, which can explain its differentiation from Asian and Caucasian hair concerning moisturization and swelling (when water content inside the fiber increases).
The texture of their hair is a result of genetic adaptations that developed over thousands of years in response to the hot and humid climate of the African continent. Curly and Afro-textured hair is characterized by tightly coiled or kinked hair strands that grow in a spiral or helix shape.
It is resistant to stretching and can withstand a traction force of 60 to 65 grams. Caucasian hair has varying levels of resistance and can withstand 40 to 45 grams of force. African hair is the most fragile, less resistant, and prone to breakage, with a capacity to withstand only 30 to 35 grams of force.
Afro hair is a texture not simplified to curly / straight and it isn't more 'dominant' than European hair textures (most Indians have Afro hair that is straight for example and as we get older the texture coarsens).
Asian hair has the highest growth rate and is by far the most resilient hair type. African hair generally has a slower growth rate and less tensile strength and breaks more easily than other groups. Caucasian hair is somewhere in between the two.
Anthropologist Joseph Deniker said in 1901 that the very hirsute peoples are the Ainus, Uyghurs, Iranians, Australian aborigines (Arnhem Land being less hairy), Toda, Dravidians and Melanesians, while the most glabrous peoples are the Indigenous Americans, San, and East Asians, who include Chinese, Koreans, Mongols, ...
Skin barrier function is reportedly stronger in darker skin tones (the stratum corneum is the skin barrier). Asian skin is reported to have similarities with Caucasian skin in terms of water loss and has the weakest barrier function.
Distribution. Black hair is the most common in Asia and Africa. Though this characteristic can also be seen throughout Europe as well, it is considerably less common. It can be found in Celtic populations such as in Ireland, Scotland and Wales.
Type 1A is the rarest hair type and is stick-straight without even a hint of a wave.
Many people of European and Asian descent have curly hair, and curl patterns vary greatly among people of African descent. As the combining of ethnicities becomes more common in an increasingly global world, these historical ways of describing hair may become increasingly less accurate.
It has been reported that Asian hair is generally straight and is the thickest, while its cross-section is the most round-shaped among these three. Caucasian hair is generally straight or wavy and is the thinnest, while its cross-section is relatively elliptic.
Caucasian skin tends to have a thinner epidermis and less melanin than African American skin. As a result, Caucasian skin is more susceptible to sun damage and the formation of age spots, fine lines, and wrinkles.
Though there are many variations in hair type, persons of African descent generally have wavy or curly hair. The amount of curl is different for each person and can range from wavy to tightly coiled. The hair tends to be dry, and the curls may intertwine to form knots.
Black hair follicles have an elliptical shape that grow in a spiral and results in the slowest growth rate, at only about a third of an inch per month. It is also more fragile and prone to breakage. Asian hair follicles are round, usually very straight, and strong.
Many black women are using hair jewelry like beads, gold cuffs, and multicolored string to accentuate natural or protective styles such as braids, locs and twists. This "trend" however is rooted in the black hair experience.
Knot formation due to intertwined hair fibers makes combing difficult and predisposes the African hair to breakage during normal grooming. In addition, the African hair has a slower hair growth rate compared with Caucasian and Asian hair, and there is a reduced total hair density [5,6,8,9,10,11,12,13,14,15,16].
A general observation across experiments was that straight hair was perceived as younger, healthier, and more attractive than wavy hair and darker shades (medium copper and brown) were perceived more positively than blonde hair.
The rarest eye colors are red and violet, which are primarily found in individuals with albinism. Excluding those affected by albinism, green and gray eyes are considered the most uncommon.
Nature's Rarest Palette: Red Hair Standing at the apex of rarity, natural red hair occurs in just 1-2% of the global population. This striking shade results from a specific genetic variant of the MC1R gene, requiring both parents to pass on the recessive trait.
People with black hair have the darkest hair as well as the most common hair color in the world. The reason for such dominance of this color is that the genetic trait is dominant for a huge part of the population. In fact, all ethnicities have this genetic trait regardless of the color of the skin.
Artificial pigments such as pink do not exist in human hair by nature and open endless possibilities of taking inspiration from anywhere outside of the human hair color range. Hair forms an evolving boundary between the inside and the outside of the body, it is both separate from us and a part of us.
This was a hairstyle that was largely prominent in the 70s and 80s. As well, and most importantly, most people regardless of race can physically grow an afro if they grow their hair long enough. I know I can and I'm not black.
Findings indicated that non-Hispanic Blacks and Hispanics have accelerated aging, and non-Hispanic Whites have decelerated aging. Racial/ethnic differences were strongly tied to educational attainment. We also observed a significant difference by birthplace for Hispanics.
Whites are usually taken as the standard against which other groups are compared, but they are not necessarily in the best health. Hispanics appear to be healthier than whites on a number of measures, though not all. Asians are generally in better health than any other group (Hummer et al., 2004).