Why aren't thin people fat - last night's Horizon

Watched this programme with great interest as I have been a fat person pretty much all my life, though not as fat as I am now. The take home message seemed to be that once you are fat you are pretty much buggered (unless you have liposuction presumeably) because unlike the stock market, fat cell numbers can only go up. Also if you want to consume a large number of calories in a small volume of food then chocolate and MacDonalds are the things to eat.

The most interesting thing really was a study of nursery school children which showed that there really are people who can ignore chocolate if it's put in front of them. If I know it's there I can't think about anything else until I've eaten it all.