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...