Actress Laura Prepon has revealed in her new guidebook to motherhood, You & I, as Mothers, that her mother taught her how to be bulimic when she was 15 years old. Prepon believes that her mother was trying to help her and equated being thin with success. The cycle of dysfunction lasted until her late twenties, during which time she struggled with her body and self-acceptance. Her bulimia continued through her early acting career, including her seven years on That '70s Show, where she would binge and purge in secret. Prepon's costars were unaware of her eating disorder as she was very private about it.