A study in the CDC's Morbidity and Mortality Weekly Report found childhood obesity rates in New York City and Los Angeles are already declining, with earlier interventions giving New York City an edge in the obesity battle. "These findings suggest that ongoing education, support and approaches that target specific cultural and socioeconomic groups can have positive effects in reducing childhood obesity," said Samantha Heller, clinical nutrition coordinator at Griffin Hospital's Center for Cancer Care in Derby, Conn.