> but it's downright foolish to pretend that we are gaining weight for any other reason than that we are eating too much and exercising too little. Right, but

> but it's downright foolish to pretend that we are gaining weight for any other reason than that we are eating too much and exercising too little. Right, but the question here is why are we eating too much? (why we're exercising too little is easier to answer: it's harder to exercise when you're overweight, and our lifestyles have changed). It seems that the hunger mechanism is out of whack; either because the types of food have changed, or something changed in our internal reactions to calories/fat/etc