“…It has now been well established that exposure to thin idealised media images can impact negatively on women's body image (Grabe, Ward, & Hyde, 2008;Groesz, Levine, & Murnen, 2002;Levine & Murnen, 2009;Want, 2009). These negative effects happen particularly for more vulnerable women, that is, for those who have internalised the thin ideal to a greater extent (Dittmar & Howard, 2004;Grabe et al, 2008;Groesz et al, 2002;Heinberg & Thompson, 1995;Yamamiya, Cash, Melnyk, Posavac, & Posavac, 2005) or for whom appearance is important to their self-concept (Dittmar & Howard, 2004;Halliwell & Dittmar, 2005).…”