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 ...

The texture of hair (curly versus straight) is determined by the shape and structure of the hair follicle (a curly follicle versus a straight follicle), among other factors. Human hair can vary in ...

Each hair strand grows from its own hair follicle that extends deep into the skin. Curly hair forms due to asymmetry of both ...

DHT stimulates hair follicle growth in areas more responsive to androgens, like the chin. Some women naturally have more sensitive DHT receptors, meaning that even normal hormone levels may ...

but they can still attach to curly hair According to Henry, lice are more likely to attach to straight hair because of the shape of the follicle. Henry said people with curly hair have an ...