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. Meanwhile it's almost nonexistent in people of African and European descent. Both age and sex can also affect your hair shaft thickness.
Caucasians have the highest hair density among the ethnicities studied. Black people have the lowest. Asian people have hair density that falls somewhere in between.
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.
Genetic factors appear to play a major role in determining hair texture—straight, wavy, or curly—and the thickness of individual strands of hair. Studies suggest that different genes influence hair texture and thickness in people of different ethnic backgrounds.
Most people of East Asian descent have thick, straight hair. This corresponds with a SNP (rs3827760) in the EDAR gene which is involved in hair follicle development. The ancestral allele of this SNP is the A-allele. The G-allele is the newly derived allele that leads to the thick, straight hair.
Caucasian, Asian and Indian hair samples were put to the test for the World's Best Hair study. Their results put an end to any splitting of hairs over the issue: in terms of health, the Indian hair is the best, topping other ethnic groups on all four counts.
Follicles that are more oval in shape cause curlier hair to grow. Very tightly coiled hair is due to the nearly flat, ribbon-like structure of their follicles. This hair texture is very common in people of African ancestry. Not only is African hair often coiled, it also has a unique texture.
To find out your hair's density, take a front section of your hair and pull it to the side. If you can visibly see sections of your scalp underneath or through the hair, then your hair is thin. If you barely see your scalp at all, your hair is thick. If it's somewhere in-between, then your hair has a medium density.
Hair follicles come in different shapes and sizes, affecting hair texture and width. Some people have wider follicles-and therefore, thicker hair strands-than other people. Genetics influence hair thickness, but other factors like hormones and age are important factors, too.
Hair that's thick refers to the density of hair follicles on your scalp. In other words, if you have thick hair, you have more hair follicles on your scalp, which means you have more hair on your head than some other people.
The African hair is generally curly or frizzy, and grows almost parallel to the scalp. It has the slowest growth rate of 0.9 centimeters per month due to its spiral structure which causes it to twist on itself as it grows. African hair has a flattened shape.
Thicker strands of hair are more likely to have a defect, making them more prone to breakage, the researchers believe. Lustrous, thick hair may be desirable but it is not necessarily the strongest. Scientists said thin hair tends to be stronger than thicker locks, after looking at the way they break.
The thickest strand of human hair is 772 micrometres (0.03 inches) and was plucked from the beard of Muhammad Umair Khan (Pakistan), in Lahore, Punjab, Pakistan, as verified on 3 March 2021. The hair was discovered on Muhammad's chin as part of his beard.
This may be related to differences in body composition, which is known to differ between ethnic groups. 62, 105 More specifically, black adults were found to have a relatively higher muscle mass (leading to a lower sarcopenia prevalence) compared to whites and Asians.
When it comes to the race that tends to lose the most hair, that goes to Caucasians. Additionally, West Asian (specifically Indian) people are likely to experience similar hair loss levels to Caucasians.
Africans have the widest and most prominent nose compared to other ethnic groups. Their noses are featured with enlarged nostrils, wide and rounded tips and a lack of protruded nasal bridge. West Africans have the widest noses (widest nostrils), while north Africans tend to have the smallest wide noses.
Hair thickness is an “additive" trait. This means that if you inherited two copies of the “thick hair" version of the gene (one from each parent), you'll likely have even thicker hair strands than if you only inherited the "thick hair" version from one parent.
Usually if your hair gets poofy, it's because it's curly and lacking in hydration. However, gray hair tends to be dry as well, so hydrating products are still important if that's the cause of your poofiness.
Geneticists at the University of Tokyo and several other institutions in Japan, Thailand, and Indonesia have now used the HapMap to explore why Japanese and Chinese people have thick hair: The cross-sectional area of East Asian hair fibers averages about 30% larger than that of Africans and 50% larger than that of ...
Long Layers
As Trace Henningsen, a celebrity hairstylist and ambassador for Leonor Greyl explains, “The secret weapon to thick hair is long layers because they create movement and make your hair feel lighter.”
While the thickness of your hair refers to the size of your individual hair strands, the amount of hairs on your head can also indicate whether your hair appears thick, thin, or somewhere in between. For instance, having thin hair doesn't mean that your actual strands are thinner.
Genetics. Native Americans, East Asian, Southeast Asian, Southwest Asian, Middle Eastern, Far East Russian, South Asian and Himalayan black-haired people have thicker and straighter hair due to the derived EDAR gene allele that is linked to thicker and straighter hair and shovel-shaped incisors.
Afro-textured hair, or kinky hair, is a human hair texture originating from sub-Saharan Africa. Each strand of this hair type grows in a tiny, angle-like helix shape. The overall effect is such that, contrasted with straight, wavy, or curly hair, afro-textured hair appears denser.
Scientifically, black hair is the slowest growing hair type due to its elliptical shape and only grows about one third of an inch per month. Alongside slow growth, you'll likely also encounter issues such as breakage, thinning and shedding whilst trying to grow your afro hair; typically, this is due to dehydration.