Caucasian hair grows at a rate of about 1.2cm a month and has the greatest density of all three hair types.
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.
Yes, Caucasians (Indo-European and Semite populations) are the hairiest ethnic group. The cause is still unknown. It has been posited that the various Caucasian populations originated in Northern regions at the end of the last ice age.
Asian hair is by far the thickest of all hair types – 80 - 120 µm in diameter. Because of its extra diameter, it is also the strongest, and most resistant to damage.
Asian hair has the highest hardness and elasticity. It is resistant to stretching and can withstand a traction force of 60 to 65 grams.
Genetics (which controls ethnicity) is the number one cause of hair loss. 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.
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.
The researchers found 68% of white men reported hair loss compared to 64% of South Asian men and 59% of black men. (The relatively small differences are partially explained by the fact the white men in the study were older). There are also forms of hair loss that are known to be more common in people of colour.
There is no scientific basis to claim that any particular ethnicity or race has "more dominant" genes than others. Genetic diversity exists within and across all human populations. All humans belong to the same species, Homo sapiens, and share the vast majority of their DNA sequence.
Melanin is what gives your hair (and skin) its natural color. People of African descent, Thai, and Chinese people, go grey more slowly.
There is no specific ethnicity that can't grow facial hair, but East Asian individuals, such as Japanese and Chinese, tend to have less facial hair and slower growth rates compared to other ethnicities.
Based on these findings, we hypothesize that the thickened cuticle layer in pubic hair may have evolved as a defence mechanism against chemical damage from urine, urea and ammonia. Keywords: FT-IR imaging; cortex; curly hair; cuticle; hair; pubic hair; scalp hair; urine effects.
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.
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.
Of all the hair types, coily hair is seemingly the slowest to grow. That's because it has the densest structure of all and is prone to shrinkage, which can make even the fastest-growing of locks look like they haven't budged.
Traditionally, certain ethnicities have been known for growing thick beards, including those in the Middle East, Mediterranean, and South Asia. Other ethnicities are less likely to have thick, full beards.
Glazer et al also demonstrated that Asians had the highest sperm concentrations and Blacks the lowest, similar to our data.
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).
Of the practicing regions, Middle Eastern and northern African nations show the greatest frequencies of consanguinity. Among these populations with high levels of inbreeding, researchers have found several disorders prevalent among inbred offspring.
Those of Inuit, Indigenous American, and Chinese descent have the lowest rate of hair loss. Hair loss for other ethnic groups falls in the middle.
No matter how thick of a head of hair you were born with, you will gradually lose its thickness as you age. Hair amount is at its peak at age 35, but at age 45, it will wane by 5 percent, and at age 50, 11 percent. The pattern of hair thinning is different for both sexes.
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, ...
Findings indicated that non-Hispanic Blacks and Hispanics have accelerated aging, and non-Hispanic Whites have decelerated aging.
Type IV – Brown skin color, brown hair, and brown eyes, tans more than average, rarely burns, and rarely freckles. Common ethnic background: the Mediterranean, Southern European, Hispanic.