CHICAGO (Reuters) - Childhood obesity in the United States appears to be causing girls to reach puberty at an earlier age, for reasons that are not clear, a study said on Monday.The report from the University of Michigan’s Mott Children’s Hospital said a multiyear study following a group of 354 girls found that those who were fatter at age 3 and who gained weight during the next three years reached puberty, as defined by breast development, by age 9.>>> Discuss This Story
