" The moment a young girl enters adolescence, she begins dwelling on sex, consciously, unconsciously, in her dreams, alone in the bath—however or wherever it happens, it happens. Her desire is aroused. The changes of puberty are largely hormonal changes. The shifting of the chemical setting stirs desire. Intellectually, we accept the idea that sexuality is a hormonally inflected experience, but we still resent the connection. If hormones count, we worry that they count too much and that therefore we have no free will, and so we deny that they count, all the while knowing that they count, because we see it in our teenage children and we remember, please goddess, our teenage greed. "

― Natalie Angier , Woman: An Intimate Geography