The same for some eating disorders anorexia for example becomes a compulsive addiction for some people tricking the body into feeling 'good' as the pounds are shed and it isn't always to do with body image although the media is partly to blame prommoting zero sized models. A lot of time the girls and occasionally boys get a 'rush' from feeling constantly hungry they feel in control even though in reality it is out of control. The onlooker would see the anorexic as skin and bone. But it is suprising how many stores still sell minute sizes I have seen smaller sizes than size 6 UK. Perhaps they could show some responsibility by restricting sizes from 6 upwards rather than size 2 and 4, I am not sure if that would be the answer but it could be a start. Ironically a sexy body image is not always what the anorexic is looking for so they would probably be inclined to drift to children's stores for their clothes I have actually been there I am ashamed to say so I do have some idea about this.