A lean and mean body is what you want. If you desire that shredded body with the six pack, then those fat cells need to go. By that, I mean sucking energy out of these cells known by the name of adipocytes. These microscopic cells are your body's 'internal' fat store tank, and are used to fuel body movement. When fat is burned it doesn't evaporate, it simply moves from these internal stores to your muscles to be used as energy. With hard exercising the body will start to run low on fuel, and your fat cell levels start to empty. A fat cell will then expand or shrink depending on ingestion.