Male and female sexual hair patterns differ primarily due to differences in what?

The primary factor influencing the differences in male and female sexual hair patterns is hormonal levels. Androgens, such as testosterone, are typically present in higher levels in males and have a significant role in the development of body and facial hair. These hormones stimulate the growth of terminal hair in areas such as the chest, face, and abdomen in males, while females tend to have finer, vellus hair in similar regions due to lower androgen levels.

On the other hand, genetic markers can certainly affect hair pattern results and hair follicle density, but the role of hormones in developing sexual hair characteristics is more direct and pronounced. Age and diet may influence overall health and hair growth; however, they do not primarily dictate the sexual differentiation in hair patterns. Therefore, hormonal levels represent the most pivotal factor in this context.