People with curly hair generally have very flat hair follicles.

Curly vs straight hair follicle.
The straight hair in caucasians is likely caused by a mutation in the tchh gene while that in east asians by mutations in the edar and the fgfr2 genes.
I think at some point weve all noticed that some beards are completely straight and some are extremely curly.
Curvy or straight hair follicles set the look of each hair throughout your life.
It is the shape of the follicle which contributes to determining whether your hair is straight or curly.
Cross section depends on the hair follicle that the hair strands emerge from.
Hairs grow out of tiny tube like cavities in the skin known as follicles.
It is thought that this shape forces the parts of the keratin molecules containing sulfur atoms closer together making it more likely that they will form disulfide bonds.
Straight hair may provide advantage in cold resistance andor in hair protection by oil secreted from skin glands.
Besides genetics and family origin i always wondered what actually made hair curly or straight or anywhere in between.
Human ancestors have curly hairs.
The curly vs straight hair argument has been around for decades.
You must have noticed how a rope falls down straight when held up whereas a ribbon curls up shape of your hair follicle.
If the follicle angles into the dermis then the hair.
The hair follicle acts as an anchor holding the hair in place.
Even if youre born with symmetrical follicles there are some ways in which straight hair can turn curly.
The flatter the oval is the curlier the hair will be.
The follicle of curly hair adopts an oval shape.
But what biology is at play.
Another contributing factor to a hairs curl is the way the follicle tunnels into the scalp.
Whether it is straight curly or wavy your hair is unique to you.
Most people who have curly hair wish their hair was straight while those with straight hair wish they had the volume and bounce of curly hair.
A round follicle produces a cylindrical hair strand.
After doing some research i found that a main difference in hair type depends on the shape of the hair follicle.
If the follicle is round hair will tend to grow straight while an oval follicle will give wavy hair and a hooked or elliptical shaped follicle will give you curly hair.
It turns out that theres completely logical reasons behind such variation in beard texture the shape of the follicle most of the time hair follicles are depicted as being perpendicular to the surface of the skin when in fact this is usually not the case.
An oval follicle produces a ribbon like compressed flat hair strand.
Hair follicles create.
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