Where is fat contained in the human body?

This undated MRI scan image released by Imperial College, London, ...

(AP) - This undated MRI scan image released by Imperial College, London, provides a detailed look at where fat is stored internally in the human body. The image is of an average-sized man who is 1.9 meters tall, weighs 79 kilograms and has a normal index of 21.7. Internal fat is shown as yellow, external fat is green and muscles are red. Some doctors now think that the internal fat surrounding vital organs like the heart, liver or pancreas - invisible to the naked eye - could be as dangerous as the more obvious external fat that bulges underneath the skin. (AP Photo, Imperial College, London, HO)