Some 'fat' people, and a lot more than the Daily Mail would let you believe are 'fat' because of biochemical imbalances. Some people become 'insulin resistance is caused by being fat and inactive, in fact most 'Scientists' believe this. However they are ignoring the mass of information on some of the causes of insulin resistance. Some of it concerns the mineral, Chromium and how it effects insulin activity. Some obese people also have Pica. Some scientists believe that Pica means people eat dirt, dog **** and *** butts, but in general it manifests itself as a large appetite for sweet or bulky foods. Before all the overweight people take to the streets for a party, it way too simplistic to say being overweight is causes by imbalances, as the other issue is general inactivity. Particularly in this modern age. A long time ago, people who were what you would describe as mentally ill, were treated rather unsympathetically. This has since changed. I still believe most chronically and morbidly obese people are treated in an unsufficient manner. Telling them to put both hands on their head and step away from the buffet is not always the answer. Nor is stapling their guts up. It is akin to telling depressed people to 'man up'.