my dictionary must have the word "responsible' defined wrong. That's the only possible explanation!

Hmm, Asian people aren't thinner because...they don't have the fat genes? Because they consume fewer calories in childhood and adolescence? Because they breast feed their infants longer? Because they walk more? Because their annual sugar comsumption is 140 pounds per year less than ours? (And, btw, they have more strokes because....?)

Cripes, I don't give a passing grade to this kind of simple-minded single causal explanation from my freshman students!

And Mr. Frumble, good point! It might be interesting to compare that list to the list of docs on the board of, say, Weight Watcher's International. There might be other conflicts of interest. I'd love to see their stock portfolios.