The density of Caucasian hair is the highest of the three ethnic groups, so it is the most dense.
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.
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.
Asian hair the most dominant hair type in the world out speeds the rest with a growth rate of 1.3cm per month, and despite an estimated 80,000 to 140,000 scalp hairs, it usually has the least density.
Although the total cuticle layers are significantly thicker in Asians, the thickness of one layer is particularly similar between the two ethnicities. A recent study with larger samples agreed that Asian hair has a higher median cuticle thickness than Caucasian and African hair.
Fine Hair. Fine hair is typically very soft and delicate. Made up of only two hair layers (the cortex and the cuticle), these hairs can be silky smooth and sleek, but they're also the most prone to breakage.
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.
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.
The reason Asian hair tends to be thicker is that it has around 10 layers of cuticles. Cuticles are the small areas around the inner protein structure of your hair–they are there to protect those proteins.
Individuals of African ancestry, for example, are more likely to have curly hair due to the oval shape of their hair follicles. Additionally, the Keratin Associated Protein (KAP) cluster genes, responsible for the structure of keratin fibers, have been found to have variations in many African populations.
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.
Sweden. Livings standards, healthy lifestyles, geography, and diet are the primary factors why people in Sweden have the healthiest and beautiful hair.
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.
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.
H. Harris, publishing in the British Journal of Dermatology in 1947, wrote American Indians have the least body hair, Chinese and black people have little body hair, white people have more body hair than black people and Ainu have the most body hair.
Japan, Korea and the Rest of East Asia
East Asians are furthest from the Mediterranean region and also have the lowest rate of baldness which does not seem to be an accident. Incidentally, their baldness rate can range from 20% to the low 30s, which is still a significant portion of the population.
Which country has the least bald men? According to the same Quora study, China is the country with the least number of bald men. Other countries like Japan, Thailand, South Korea, Taiwan, and Malaysia also have a lower prevalence of baldness.
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.
While you may have heard that blonds suffer more hair loss than brunettes, the reality is that your natural hair color doesn't have any effect on your likelihood of experiencing hair loss.
The physical activity and competition that go into being a professional athlete require the body to be producing testosterone around the clock. But as much as testosterone can benefit athletes on the field or court, it can hurt their appearance by destroying their hair follicles.
The hair follicles shrink over time, the hair thins, and eventually stops growing. By going hard on the weights at the gym and increasing the testosterone and DHT, weight lifters and bodybuilders with the right genetics can risk an earlier onset of hair loss including shedding and male pattern baldness.
We believe one of the reasons is that super-straight hair — also known as type 1a hair — is so rare. In fact, it's the rarest hair type. Only 2% of the world's population has 1a hair. It's mostly found in people of Asian descent.
Hair type 1A is super-straight. It doesn't even hold a curl! 1A is the rarest hair type.
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.