Hair straightness is one of the morphological features that are diverse among races, implying an influential genetic linkage. A genome-wide scan exhibited a significant association between EDAR370A variant and hair straightness in East Asian populations.
In fact, many Korean people have curly or wavy hair textures — but this is often a well-kept secret as most Koreans opt for the widely popular Korean Magic Straight Perm as opposed to wearing their natural curls.
Usually, straight hair is either because of hair treatments, or genetics (and considering that Koreans are Asian, it's probably genetics). Clear skin is usually due to their diet and skin regime (aka cleansing, exfoliating to get rid of oils and dead skin and eating lots of veggies and drinking a lot of water).
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.
Amongst Indians for example, South Indians typically tend to have thick, coarse and curly hair whilst North Indians generally have thick, fine and straight hair.
Hair curvature is greatly diverse among different ethnic populations. In contrast to African hair that is more flattened and often has twists and turns, Asian hair tends to be round in shape, straight, and more cylindrical. The low values of average curvature in Asian hair suggest a relatively straight hair.
Yes, East Asians can have naturally curly hair.
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.
The rarest natural hair colour is red, which makes up only one to two percent of the global population. You commonly see these hair colours in western and northern areas of Europe, especially Scotland and Ireland. However, natural redheads may not exist for much longer.
Most people of East Asian descent have thick, straight hair. This corresponds with a SNP (rs3827760) in the EDAR gene which is involved in hair follicle development. The ancestral allele of this SNP is the A-allele. The G-allele is the newly derived allele that leads to the thick, straight hair.
It's not uncommon but estimated to be 10% of the Chinese have wavy or slightly curly hair. It's a misconception propagated by ignorant people that Chinese only have straight hair. The predominant gene is straight hair but the recessive gene is slightly curly or called wavy.
“According to my hair stylist, Korean women use a hair essence or oil every single day, which is why they have such silky, soft, and shiny strands.” A personal favorite for Cho is British M's Organics Annatto Hair Oil, while Lee is a fan of the Mise en Scene Pearl Shining Hair Essence.
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.
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.
Nearly 80% of Asians either have naturally straight hair or have styled it that way or they born with it. Straight hair is what is referred to as “Type 1” hair. Therefore, it may be summed up as genetics and the Asian race evolution.
Thick (Coarse)
Thick or coarse hair texture is the strongest hair texture and typically feels coarse or thick to the touch. Coarse hair contains all three hair layers – the cortex, cuticle and medulla.
The least common hair type, 1A hair is extremely fine and perfectly straight. Consequently, it can look a bit flat and limp and might prove difficult to style. Dry shampoo can be your ally in the fight against excessive oil and thick hair products that might weigh your hair down are best avoided.
Caucasian hair usually appears thicker since it is more difficult to see through the scalp than other ethnic hair types. However, Asian hair is the thickest and coarsest hair of any ethnic group.
Type 1 hair is hair that lies flat, or straight. Straight locks tend to be on the shinier side because the hair's natural oils are able to travel from root to tip. This hair category includes divisions 1A, 1B, and 1C. Type 1A is “stick” straight hair that has no hint of curl or wave.
Type 1A - This hair type is extremely soft, smooth and shiny. While this hair may feel like a dream for many, it lacks volume. Type 1B - slightly thicker and bouncier than 1A. Type 1C - Most coarse and thick straight 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.
The same study showed that Asian (East and West) hair shape is also mostly straight (46.7%) or wavy (41.3%), with some curly hair (12%) (n = 92).
There are plenty of blue-eyed Asians. This probably happens when the traditional blue-eyed allele comes into a family from a (possibly very distant) European ancestor. Blue eyes then resurface in a child generations later if they inherit the allele from both parents.
There have been 16 genes identified that contribute to eye colour. This means that no matter what colour eyes your parents have, yours can be pretty much any colour. All races, including Caucasian, African, Asian, Pacific Islanders, Arabic, Hispanic and the Indigenous Peoples of the Americas can have green eyes.