I don't think you can kill something that has a 1000 year shelf life!
Obesity can be caused by either genetic or social disorders, often a combination of both. While getting into shape is usually a good motivation for working out, I'd agree that obsessing aobut perfection is a body image disorder. You shouldn't have to take drugs to be your best, I would equate taking steroids with cosmetic surgury. Don't get me wrong, I really don't object to either, but I do wish our society didn't compel people to feel they needed either. Then again, I wear a ton of make up, so where do you really draw the line? I used to do the fake nail thing, until I read about the enormous build up of germs and it started grossing me out. I've returned to my former habit of keeping very short nails, which is easier for sewing and guitar playing anyway, certainly a lot cleaner.