When I was little my sister had an eating disorder. She was in about 10th grade and I remember her puking in the kitchen garbage and she told me not to tell anyone. And of course I didn't because I was too young to undertsnad what was going on. Now shes 21 and has acid reflux from making herslef throw up for all that time.
I think it's kinda sad that people are so unhappy with the way they look that they have to change their looks by such dangerous means.