I used to think the same thing, I had a boss who was huge, I saw a pic of him younger days and he was in good shape. I asked him and he said stress, I thought to myself thats a lazy persons excuse to eat like shit. But now thats exactly what I do, I get stressed and I eat, mainly burgers and chicken rolls. Now I diet very well so its not that bad, but imagine someone out of shape already and they eat ice cream, soda and other truly bad things.