Sociology represent!  Watch Kjerstin Gruys, UCLA sociology Ph.D. student, on The Colbert Report.  Her new book is called Mirror, Mirror Off the Wall: How I Learned to Love My Body By Not Looking at It.

See also a previous guest post where she answered the question, Can a Feminist Diet?

Lisa Wade, PhD is a professor at Occidental College. She is the author of American Hookup, a book about college sexual culture, and a textbook about gender. You can follow her on Twitter, Facebook, and Instagram.