Americans are "healing themselves" (Heckler, 1985) and prevention has taken root (McGinnis, 1985a). We are altering our lifestyle to reduce physical and mental health risks. Perhaps as important is the fact that the science of prevention is beginning to catch up with the practices of prevention, although some might argue that the popularity of these practices far outstrips sound theoretical and empirical foundations. The chapter authors in this volume examine the theoretical and empirical foundations of many current prevention practices and, where data exist, discuss the status of prevention efforts. Where substantial prevention is not yet on the horizon, the authors attempt to point us in the right direction or at least share with the reader some of the risk factors that should be addressed in our research. We hope that readers will be stimulated to discuss the issues raised, advance the current research, and, where possible, adopt the prevention and health promotion strategies that are supported by sound theoretical and empirical work. This volume can in no way be comprehensive with respect to the current work in prevention; however, we hope that we have provided a sampling of prevention activities and issues that appear together in one volume for perhaps the first time. The primary intent of this volume is modest, and the reader should not attempt to find continuity among the various chapters. The only binding among these contributions is their focus on prevention.