Secondhand smoke harms the cardiovascular health of children, especially toddlers and obese youngsters, U.S. researchers say. Their study of 52 toddlers (aged 2 to 5) and 107 adolescents (aged 9 to 18) found an association between the amount of secondhand smoke exposure and a marker of vascular injury in toddlers. This link was two times greater in obese toddlers, the study authors noted. Toddlers exposed to secondhand smoke showed a 30 percent ... Jump to full article >>