Manage episode 217679153 series 2315283
The numbers bear out the bad news: Americans, young and old, are getting heavier, to the point where it constitutes a threat to public health.
Why are we getting fatter, and what can we do about it? One myth is that we should be counting calories. Contrary to common belief, a calorie isn't what we think it is, and our focus on calories distracts from the true sources of our national obesity epidemic.