The study was part of a two grant project on the Collaborative Projects on Women's Health. Dr. Robert Klesges conducted a longitudinal study to assess whether weight concerns of adolescent girls predict smoking onset at a later age. His collaborator, Dr, Linda Eck (R01HL50946), evaluated the role of smoking in dietary intake, physical activity, and metabolic rate and determined the differential effects of smoking and race on the energy balance of African American and white women.