Hint of hope as child obesity rate hits plateau

After rising for more than two decades, childhood obesity appears to have hit a plateau. But it is not clear if the lull is permanent or even if it is the result of public anti-obesity efforts to limit junk food and increase physical activity in schools. Researchers did not give reasons for the leveling off of childhood obesity rates, and one concern is that the lull could represent a natural plateau that would have occurred regardless of public health efforts.