Here in America, obesity-related communications work is big business. That's because obesity itself is a big problem. Since 1980, obesity rates among US men and women have more than doubled, to roughly a third of the entire population.

But now, a new study from the Centers for Disease Control (CDC) and the National Center for Health Statistics (NCHS) indicates that the tide may be turning. The latest national obesity study (which is released every two years) shows that the increase ...