Less than 20% of the world's population is born with naturally curly hair, so in terms of pure numbers, it's fairly rare.
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.
Lots of traits are statistically rare: Left-handedness (just 10 percent of the population!), curly hair (11 percent!), and blond hair (4 percent!), to name a few.
Think back to your childhood hair or before you started regular styling routines. Believe it or not, an estimated 65% of women have naturally curly hair. Chances are good that you're one of them!
Textured hair is a fast-growing market: an estimated 65% of the U.S. population has curly, coily or wavy hair.
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.
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.
And while the results did vary, in the end we found that 58% of the fellas agreed that curlier is sexier.
Curly hair is a bit more delicate than straight hair, and the tighter the curl or coil, the more fragile the strand. Curls generally need a little extra love, and it's important to know how to do right by your hair so it can stay looking amazing.
The majority of the Japanese population has naturally straight hair and many who do have some form of curly hair have it chemically straightened in order to fit in. It isn't surprising then that there are very few hair salons that will even attempt to work with curly hair, let alone excel at it.
Many Asians have naturally straight hair, but there is a significant group of us who do have naturally curly or wavy hair! However, because it's the norm to see straight and sleek hair, curly haired boys and girls tend to think that their hair is some kind of unruly straight hair that isn't behaving.
Less than one in five women in the US (17%) and one in ten women in GB (10%) describe their hair type as curly.
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.
Type 2C hair waves start from the scalp and are thicker than other Type 2 subcategories. This coarse hair type is the most prone to frizz and forms an “S” shape when dry.
TIL The rarest natural hair color in the world is red, with only 1-2% of the world population having natural red hair. Second is blond, with 3%, then brown/brunette, with 11%, and finally black with… You learn something new every day; what did you learn today?
genes and me » hair curl. Human hair comes with all sorts of colors, textures and shapes. Notably, African hair is more coiled and dry; Asian hair is straighter and thicker; and Caucasian hair is somewhere in between with around 45% having straight hair, 40% having wavy hair, and 15% having curly hair.
Curly hair is thought to be better at keeping mammals warmer than just straight hair alone. In fact, straight hairs interwoven with curls creates the last line of defense against heat loss.
Follicle Shape- The shape of your hair follicle largely determines your curl. Oval follicle shapes produce curly hair while round follicles produce straight hair.
This is part of it's appeal. Conformity is boring and curly hair is definitely not boring. Curly and wavy hair is completely uninhibited by societal pressure. Your curls will laugh in your face when you try to change them and they will declare themselves a wild force of nature.
"In South Korea, we think that curly hair is messy and must be straightened out," she shares with Allure. "Even in mass media, straightened-out hair is considered more beautiful than curly hair.
"Men often see curls as more feminine and perhaps sexier," says Rose Weitz, Ph. D., a sociologist at Arizona State University who studies perceptions of women's hair.
Caucasian hair is generally straight or wavy and is the thinnest, while its cross-section is relatively elliptic. As for African hair, it is very curly, its thickness is intermediate and the shape of cross-section is highly elliptic.
In sub-Saharan Africa, genes favour tight, curly hair. But in east Asia, mutations have led to straighter, thicker hair. In Europe, other mutations brought wavy and straw-coloured hair.
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.