Asymmetrical follicles yield hair that curls, symmetrical follicles yield straight hair. The longer curly hair grows, the more complex its structure can be, says a study reported in a journal of ...
Verywell Health on MSN10mon
Hair Types and Textures in Men and Womenor coily (very curly, coiled strands). The shape of hair follicles determines how curly or straight hair is. Round hair ...
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