Caulfield, a professor of health law and policy at the University of Alberta, talked about some of the silly pseudoscience put forth by Paltrow, Katy Perry, Simon Cowell, and others — from vagina steaming to supplements to detox cleanses. We also discussed the impact of Angelina Jolie going public about her preventative mastectomy, the conclusions he came to after reading People magazine every week for a year, and how Big Beauty sells you skin products you do not need.