This book defines the field of social capital and health. Over the last two decades, there has been a recognition of the importance of social capital (usually defined as ties in the community, attachment to the community, and participation in community activities) and its impact on the health of those in that community. The purpose of this book is to show the growth in the field of social capital and health and to expose readers to a variety of approaches in order to think about and model the question of how health can be improved by investments in community social capital as well as by individual social capital.An outstanding set of papers will be presented by authors from the United States, as well as from Europe and Asia. These papers are cutting-edge and explore the mechanisms through which social capital affects health. The papers also present the most recent empirical work and discuss the policy implications of their findings. Without a doubt, this will be a landmark book which will make the study of social capital and its impact on health a major area of research in the coming decade.