The number one thing people with any kind of problem need is help. While we may find help to be through changes in habit, unfortunately that may not always be the answer. I won't lie, I think its weak-willed to need something unnatural to change a habit (surgery to change one's stomach). Of course I'm one to talk (and you can all laugh at me) I'm extremely addicted to MMORPG video games. No lie, I'd go on 48-hour playing marathons, which is why I had to quit playing MMORPGs. They were taking over my life.
Funny thing is you don't find many anorexic people in nation's plagued by starvation. So to me its another byproduct (like my lame video game addiction) of something in our "modern" society, fueled by the need of many to feel socially accepted to an extreme.