The purpose of this study is to evaluate the clinical utility of a new family history tool, Family Healthware™ by determining whether family history risk assessment and personalized prevention messages have any impact on health behaviors and use of medical services. The hypothesis to be tested is that patients who are provided with personalized prevention messages based on an assessment of their family history of disease will be more motivated to make behavior changes and use preventive health services than patients who do not have their family history assessed and who receive only generalized (not personalized) prevention messages. An additional hypothesis, tested when participants see their primary care physician during the study, is that providing a copy of the graphical family history, risk and prevention messages to the patient's physician will increase delivery of recommended preventive services (screening, referral, and health habit advice).