Understanding Leg Hair Growth: Causes & Evolution

The hair growth on legs and forearms is known as androgenic hair, and begins to sprout at the onset of puberty. Like most kinds of androgenic hair, this growth is considered largely vestigial, and can be considered a source of embarrassment by some.

Evolution

• Body hair was originally meant to keep the human body warm, but has been largely bred out of the human population, since clothing now fulfills the purpose.

Puberty

• Both males and females experience a spike in the male hormone androgen at puberty, which stimulates a number of growth factors. These factors include muscle and hair growth.

Androgenic Hair

• The follicles that precede leg hair belongs to a family of cells that are considered "androgen sensitive." These include pubic hair, chest hair, vocal chords and reproductive tissues.

Male vs. Female

• Men tend to have more leg hair than women because they naturally produce more testosterone and androgen.

Increase

• Androgen stimulating health supplements like Andro-Stack can increase leg hair production and thickness.