Now that we've given the hair on our head its due, we're traveling south to explore the hair we have everywhere else. And we mean everywhere: Our bodies are covered with about five million follicles from tip to toe, except for our lips, palms, and the soles of our feet. First, Michelle and Jenny travel back in time with anthropologist Nina Jablonski, who explains how our ancestors went from thoroughly hairy to basically naked over the course of a half-million years. After that, dermatologist Kavita Mariwalla stops by to talk through all the many options for removing body hair, if that's what you choose to do.

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This episode of Allure: The Science of Beauty is presented by Pantene.