Kids Run to Fight Childhood Obesity

This January, 4,000 kids will run the last mile in P.F. Chang's marathon, as part of a program to get kids in shape and end obesity.

Kids at Machan Elementary trained Tuesday for the 1-mile run. These kids are planning to beat the odds -- in Arizona, one in five kids is overweight.

Leticia Vega's school is taking part in the Kids Rock Stars program. She and her classmates will run or walk a mile a week, leading up to the marathon.

The day of the marathon, they will run the final mile. The hope is that the lessons they learn about nutrition and exercise will stick.