African hair
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. The density of African hair is slightly higher than Asian hair.
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.
Thicker hair (>60 µm) grows generally faster (11.4 mm per month) than thinner (20-30 µm) hair (7.6 mm per month). It was previously thought that Caucasian hair grew more quickly than Asian hair and that the growth rate of women's hair was faster than that of men.
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. Which country is best in fashion?
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. For some unknown reason, this form of hair loss is does not occur among Native Americans.
The top 3 exporters of Human hair are India with 207,163 shipments followed by Indonesia with 27,138 and China at the 3rd spot with 18,383 shipments.
Summary: Activation of the gene Lhx2 leads to increased hair growth.
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.
Hair Growth Rate
Asian hair shows the fastest growth rate in comparison to the other two hair types. African hair has the lowest growth rate.
You see, the women of the Red Yao tribe have some of the longest hair in the world – as in their hair is almost the same length as their height! What is this?
Type 1A hair is very straight and fine, with no waves or curls whatsoever. This hair type tends to get very oily and requires frequent shampooing. It is the rarest hair type and is common among women of Asian descent.
According to anthropologist and professor Ashley Montagu in 1989, Asian people and black people such as the San people are less hairy than white people. Montagu said that the hairless feature is a neotenous trait.
Everyone's hair grows at different rates. Many factors — including genetics, sex, and age — can influence the speed of hair growth. Hair grows out of follicles, which are small pockets inside the skin. Each follicle contains a hair root, which is made of protein cells.
Those high in protein, the building blocks of hair, including meats and other sources. "Try increasing your protein intake with foods like fish, beans, nuts and whole grains," she recommends. Even if you're not a meat lover, you should still aim to maintain a diet high in protein for hair growth.
Can thin hair become thicker again? A person cannot change the texture of their hair. However, the hair may grow back after chemotherapy or pregnancy, for example.
One popular myth is that hair loss in men is passed down from the mother's side of the family while hair loss in women is passed down from the father's side; however, the truth is that the genes for hair loss and hair loss itself are actually passed down from both sides of the family.
It turns out that brown hair is dominant. That means that even if only one of your two alleles is for brown hair, your hair will be brown. The blond allele is recessive, and gets covered up. If two brunette parents have a blond child, they had to have instructions for making blond hair hidden in their DNA.
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.
Supposedly more humidity resistant than Indian hair. True Brazilian hair is durable, but it also very dense, so it poses some limitations in terms of movement and styling. Curly Brazilian hair holds tighter curls, making them stiff and almost impossible to flat iron.
Those A-listers, go-getters and jet-setters choose 100% Virgin hair, the most pure, rare and expensive type of human hair. The cost can top $3000 for some . On the other hand, the most popular, most worn and most affordable hair-type is 100% human hair.