Less than 20% of people have naturally curly hair.
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.
Less than 20% of the world's population is born with naturally curly hair, so in terms of pure numbers, it's fairly rare.
Naturally curly hair is relatively rare compared to straight hair. According to studies, only 11 percent of the world's population has curly hair. This is because curly hair is determined by genetics, and it is a dominant trait that is not as common as other hair types.
Over 60% of the world's population has curly hair, yet most research to date has clumped hair into three catchall types – African, Asian, and Caucasian.
And while the results did vary, in the end we found that 58% of the fellas agreed that curlier is sexier.
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. This is hot! And that is why so many people want to make babies with people with curly hair.
Your hair is naturally voluminous
Curls adds volume to your hair effortlessly, and you never have to worry about it being flat, limp and lifeless like those with straight hair. Even on days when you straighten your curls, there is always going to be that little amount of volume that will make others go green with envy.
Unlike straight and wavy hair types, curly hair often comes with its own unique challenges — among them, an increased likelihood of breakage, frizz, and dryness.
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.
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.
Curly hair is dominant, so someone is more likely to have curly or wavy hair if at least one of their parents does. Recent research points to trichohyalin, a protein in hair follicles, as having primary influence over hair curl. However, there are many genes contributing to hair curliness, most of them unknown.
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?
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.
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 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.
Fibres in the latter group were thicker, stronger and stiffer, with a greater scalp density. This means that curlier hair was found to be thicker, stronger and more resilient under mechanical forces than the near-straight hair.
Even though curly hair is very common, not everyone has a curl pattern. Some people have 1A, or straight hair, meaning their hair doesn't naturally hold a curl.
What is the biggest disadvantage of curly hair? The biggest disadvantage is brushing and detangling curly hair. Dry brushing can cause frizziness while wet hair is at its weakest state. You need to brush curly hair when it's damp that too in a down-to-upward motion.
"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.
Curly hair is often associated with a fun-loving, warm hearted and outgoing personality. If you have curly hair you are perceived as being courageous, outspoken, and spontaneous. You are probably someone who likes to challenge perceptions and norms.
Puberty, menopause and pregnancy all cause hormonal shifts that can make your tresses go from straight to curly hair. In fact, 40-50% of women experience major changes in their hair while pregnant or breastfeeding.
Hair type and texture are determined by several factors, including genetics. The African hair is more coiled and drier; Asian hair (Korean, Japanese) 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.