Dr. Judith Jacobson's major research interests are cancer, asthma, and the role of behavior, including the use of complementary/alternative medicine, in the prevention and control of these conditions. She and colleagues have collaborated on studies of factors associated with cancer outcomes in national data and decision analyses of breast cancer prevention strategies, and on clinical trials of an herbal agent to control hot flashes in breast cancer patients and vitamin supplementation to prevent DNA damage in heavy smokers. With funding from the Lance Armstrong Foundation, Dr. Jacobson is studying the determinants and outcomes of the use of complementary/alternative medicine among breast cancer cases in the Long Island Breast Cancer Study. With a grant from the National Heart, Lung, and Blood Institute, Dr. Jacobson and co-investigators are studying factors associated with the development and persistence of asthma in a cohort of children attending Head Start programs in New York City neighborhoods with high asthma hospitalization rates. The Commonwealth Fund and MetroPlus are also providing funding to Dr. Jacobson and colleagues to conduct a randomized trial of an electronic device that teaches children aged 8-16 years to control their asthma.