Policies that promote healthy eating, activity and sleep are needed to curb obesity in infants, toddlers and preschoolers

About 10 percent of children from infancy to age 2 and slightly over 20 percent of children ages 2 through 5 are overweight or obese. The rates of excess weight and obesity among children ages 2 to 5 have doubled since the 1980s.

America's Institue of Medicine has issued recommendations for sufficient sleep, and a healthy diet, and that  infants, toddlers, and preschoolers should be physically active thoughout the day, including 15 minutes of activity for each hour in care, with outdoor play to be encouraged wherever possible.

http://esciencenews.com/articles/2011/06/23/policies.promote.healthy.eating.activity.and.sleep.are.needed.curb.obesity.infants.toddlers.and.preschoolers

Implications for urban design include provision gardens and play areas for young childen, and creating a public realm that is better suited to parents and children.