Researchers supported by the National Institutes of Health are undertaking a preliminary study to identify the early origins of heart disease among African-Americans. The new feasibility study will enroll children and grand children of participants taking part in the largest study of heart disease risk factors among African-American adults, the Jackson Heart Study (JHS), in Jackson, Miss. Called the Jackson Heart Kids Study, or JHS Kids, the new effort is a pilot study, to inform the design of a full scale study to be conducted at a later date.