Check out the link for a great article.
"An image of unique power, even though disturbing, can impact viewers in the way pages of text cannot. It has shock value and sometimes people need to be shocked into awareness, particularly when it comes to a ‘fashion’ disease that has been wreaking havoc in the lives of women. While anorexia also has a psychological component, there is little doubt that constant exposure to the ideal of beauty represented by rail thin models has added to the pressure to appear slim at all costs - even at the expense of health." - Aidan Maconachy