Our pilot study seeks to answer three fundamental questions: How will physicians deal with the uncertainty provided by the new technology of predictive genetic risk assessment? What hopes do patients have regarding the significance of predictive genetic testing? And how do they interpret their results? This proof-of-principle study will investigate the impact of direct-to-consumer, predictive genetic testing provided and sponsored by Navigenics, Inc., a private company advertising predictive genetic testing for common diseases or conditions. This study will allow Mayo Clinic to be proactive in researching the dynamics of this potential innovation in health care. The proof-of-principle study described herein is designed to collect preliminary data that will inform the development of a larger clinical trial and provide data for an application for federal funding.