August 9, 2013
First lady Michelle Obama sings and dances to exercises with staff, parents and children as she visits the Royal Castle Child Development Center, as part of the "Lets Move!" initiative in New Orleans, La.
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ATLANTA — For many years, doctors have been wringing their hands as more and more U.S. children grew fat. Now, that may be changing, with the first evidence of a national decline in childhood obesity. In 18 states, there were at least slight drops in obesity for low-income preschoolers, health officials said Tuesday.