What Makes Hair Curly?...
I spent an hour curling one daughter's hair for an... ...ghter woke up from a nap with a full head of wavy curls . What's the difference? On one level, the textu... ...A 2009 study looked at the genetics of waves and curls and reported a heritability of between 85 and 95...
https://www.neatorama.com/2013/02/18/What-Makes-Hair-Curly/
