<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why do black people have nappy hair?
<|assistant|>
Nappy hair is typically the result of high levels of a protein called keratin in the hair follicles. This protein is thicker and more crunchy than other hair types which results in more curls and coarser hair textures. Because African ancestry is closely linked to higher levels of this protein, many black people have nappy hair.