Anatomy & physiology teacher,  and author of "Your Brain on Porn: Internet Pornography and the Emerging Science of Addiction", explains the evolutionary forces behind porn's appeal, how the brain changes in response to supernormal stimulation, and what makes today's Internet porn different from static porn of the past.

Your Brain on Porn

A single mother struggles with the grief of her missing child on the one-year anniversary of her disappearance, while her neighborhood milkman begins to feel a strong connection to her grief.