Childhood obesity is falling

Federal health authorities on Tuesday reported a stunning 43 percent drop in the obesity rate among 2- to 5-year-old children over the past decade, the first broad decline in an epidemic that often leads to lifelong struggles with weight and higher risks for cancer, heart disease and stroke.

The drop emerged from a major federal health survey that experts say is the gold standard for evidence on what Americans weigh. The trend came as a welcome surprise to researchers. New evidence has shown that obesity takes hold young: Children who are overweight or obese between age 3 and 5 are five times as likely to be overweight or obese as adults.

There is more here, via Charles C. Mann.