In the Packard Pediatric Weight Control Program, kids learn that some foods, like cookies, cupcakes and soda, are "red lights" and shouldn't be eaten frequently. iStockphoto.com hide caption

itoggle caption iStockphoto.com

First Lady Michelle Obama, accompanied by Darden chef Julie Elkinton, talks to Charisse McElroy, right, and her daughter Jacqueline McElroy, 9, during an event at Olive Garden in Hyattsville, Md. on Thursday. Manuel Balce Ceneta/AP hide caption

itoggle caption Manuel Balce Ceneta/AP

D'oh! Forget the error on screen. Parking in front of it is the bigger mistake. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Researchers looked at whether restaurants and stores that sold unhealthful food near high schools affected students' weight. M. Spencer Green/AP hide caption

itoggle caption M. Spencer Green/AP

Five-year-old Andy Villatoro plays with a toy he received with a Happy Meal at a San Francisco McDonald's last year. David Paul Morris/Getty Images hide caption

itoggle caption David Paul Morris/Getty Images

According to the Bureau of Labor Statistics, 47 percent of moms were in the labor force in 1975. By 2008, that number rose to 71 percent. James Tutor/iStockphoto.com hide caption

itoggle caption James Tutor/iStockphoto.com