28 Aug 2014 --- Childhood obesity in the United States remains high. A tax on sugar-sweetened beverages such as sodas, energy drinks, sweet teas, and sports drinks would reduce obesity in adolescents more than other policies, such as exercise or an advertising ban, and would also generate significant revenue for additional obesity prevention activities, say researchers writing in the American Journal of Preventive Medicine. The study also demonstrated that physical activity would benefit children ages 6-12 most.