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 hair usually appears thicker since it is more difficult to see through the scalp than other ethnic hair types. However, Asian hair is the thickest and coarsest hair of any ethnic group.
Japan, Spain and Sweden are widely known for having people with healthy hair, but there are also other countries like India, France and Russia that are also known for helping people keep their hair natural and not messing with any artificial coloring.
African American hair is typically coarser and has a thicker texture than Caucasian hair. It also tends to have a higher density, giving it a fuller appearance. In contrast, Caucasian hair is typically finer, straighter, and has a lower density.
Human and bear hairs are the strongest, exhibiting a plateau-like response followed by higher strain hardening. Javelina hair is at the opposite end of the spectrum by virtue of its cellular structure. Horse, giraffe, and elephant hairs show a quasi-linear hardening.
According to a talk presented here last week at the annual meeting of the American Society of Human Genetics, a single genetic variant may explain why East Asians have thicker hair fibers than other populations. The discovery is part of a wave of newly found genes that determine what individuals look like.
The average diameter, or thickness, of Asian hair is from 80 to 120 µm, compared to 65 µm in Caucasian hair and 55 µm in Black hair. The average diameter of Hispanic/Latino hair tends to fall between that of Asian and Caucasian. Caucasians have the highest hair density among the ethnicities studied.
The density of Caucasian hair is the highest of the three ethnic groups, so it is the most dense.
Native Americans, East Asian, Southeast Asian, Southwest Asian, Middle Eastern, Far East Russian, South Asian and Himalayan black-haired people have thicker hair due to the derived EDAR gene allele that is linked to thicker and potentially straighter hair in some parts of Asia, and shovel-shaped incisors.
Certain races have higher rates of hair loss compared to others. Caucasians have the highest rates out of all the ethnic groups. On the opposite end of the spectrum, Native American Indians, Inuits, and Chinese have the lowest rates.
Japan, Spain and Sweden are widely known for having people with healthy hair, but there are also other countries like India, France and Russia that are also known for helping people keep their hair natural and not messing with any artificial coloring.
African hair has the lowest growth rate. Hair growth rate and hair diameter were reported to be associated with cuticle interscale distance.
A gene variation of EDAR that arose about 30,000 years ago seems to give some people thicker strands of hair. More than 90% of Han Chinese, 70% of Japanese and Thai people, and 60% to 90% of Native Americans carry the “thick hair" version of the gene.
Race also plays a role in how early your hair turns gray. For instance, gray hair tends to occur earlier in Caucasians but later in Asians. African Americans may go gray later, too, with the average gray strand appearing around 43 years old.
“It is usually dark brown or black, has the thickest diameter of any of the ethnic groups and, moreover, is one of the strongest types of hair, with a capacity to grow to a greater length than that of other races - often over 40 inches,” he writes.
There are racial differences, however, in the incidence of male pattern baldness. The highest rates are found among Caucasians, followed by Afro-Caribbeans. Chinese and Japanese men have the lowest rates.
Asian and black skin has thicker and more compact dermis than white skin, with the thickness being proportional to the degree of pigmentation. This likely contributes to the lower incidence of facial rhytides in Asians and blacks.
Thick or coarse hair is the thickest and most resistant to damage. It has all three layers of hair: the cortex, cuticle, and medulla. Thick hair has the appearance of a full head of hair and can hold styles well. However, it may take longer to dry and can become frizzy in humid weather.
Asian hair is also the fastest growing, at over half an inch per month. Caucasian hair can be stick straight, wavy, or curly. The follicles have a slight oval shape, making it quite dense with an average hair growth of just under half an inch a month.
Hair diameter and type both had a small effect on attractiveness perception compared with the larger effect of color. Thick hair was perceived least attractive, with no statistical difference of minimum vs.
First things first, thick hair doesn't necessarily mean healthy hair. Some peeps desire thick hair because they associate it with fuller, healthier-looking hair. Many folks try to avoid thinner hair because of its perceived links to unhealthy hair and hair loss.
"Your hair bundles peak at around 12 years old." Then, sadly, as you age, bundles of four become bundles of three, bundles of three become bundles of two, and it's all downhill from there. End result: hair appears thinner and less full.
Hair type 1A is super-straight. It doesn't even hold a curl! 1A is the rarest hair type. It is usually found on people of Asian descent.