What do you think about the worlds body image?

Vouge displays runaway pictures of super-slim girls with bones protruding from under their skin, meanwhile Seventeen and Cosmogirl! promote health, but the girls in the workouts clearly have hipbones not hips, and clavicals, not shoulders. Even health magazines are telling you slim down with pictures of thinner people. Marilyn Monroe used to be the figure of beauty and nowadays its Nicole Richie or Keira Knightly(who appears to have lost major lbs after the first Pirates movie) Girls are dropping 5, 10, 20, 30 pounds even, left and right! Do you think this new trend is going to die down? If so, when? What do you think about the "perfect body" that has bones sticking out at every angle? Do you agree?