the answer: and not one that we like but this is my theory,
the areas where we carry fat do not warm up like the other parts of our body, like the flabby bits on our sides (girls call em muffin tops) i think its a blood flow thing, fat stays cold and the rest warms up nicely.
the cure: lose loads of weight and be skinny with a warm belly
the method: keep running non stop until your belly gets warm
