Comment More fit, too. (Score 1) 409
Americans didn't worry about fitness until JFK started talking about it, and it took years to catch on. Today's adults are far more fit than their parents were and have more muscle mass. That's going to make them heavier, but not fatter. Yes, there are probably more tubs of lard out there now, but the fitness freaks and body builders are helping bring the average up as well. (And, as the BMI doesn't take muscle mass into account, most of them are considered obese even though they have very little body fat.)