The project is designed to achieve five specific aims: (1) To determine the feasibility of attracting African Americans into Health Promotion Research studies;(2) To determine whether clinically recorded information can be used as a guide for recruitment inclusion in Health Promotion Studies from an active epidemiological research cohort;(3) To measure the ability to retain African Americans recruited into Health Promotion Studies from an active research cohort;(4) To measure the adherence to various protocols within a Health promotion Study; and(5) To provide informed estimates of effect sizes for designing future Health Promotion Research.