To be fair, there's a growing body of research indicating that a lot of addiction problems are about self-medicating: which can happen with any brain chemical. Successful rehabilitation programs now include therapy designed to figure out issues and address them properly.

My own eating disorder was absolutely in response to great stress without any other ways of coping with it. I couldn't get a handle on it until I had lowered my stress level, and I couldn't consider it no longer operative until I discovered low carb, and how carbs worked on my brain.