Have you ever been to the Bodyworks exhibit at the Science Centre? I went a few years ago. It was fascinating. They actually had plastinated slices of real cadavers on display. You could really see the fat in the obese person. It's not just a thick layer on the outside of the body, but really does develop within the body, around and throughout muscles, heart, organs, etc............scary.
Look at the ankles on the obese person in the first post. It's no wonder obese people have so many problems with their feet.