Traditionally with our parent's generation, a curvy figure was favored. I think it had something to do with showing wealth. A well fed body meant a woman had the resources to nourish herself well. Beauty was also associated with youth. A round, full face and milky skin were ideal. Western influence has changed that round face to a gaunt one with chiseled cheek bones. The typical curvy hips, stomache and chest are fertility signifiers. They're replaced with signs of independence. By being super-skinny women are declaring that they're not baby making machines. And whether they know it or not, skinny women could be risking their health.