This book provides a clear and authoritative summary of the results and clinical implications of research in spiritual healing, energy medicine and the effects of intentionality. Recent publications in the Archives of Internal Medicine, the Western Journal of Medicine, JAMA and the Annals of Internal Medicine have focused on prayer, distant healing and spiritual healing. Therapeutic touch is taught in many nursing schools and laying-on-of-hands and mental healing are of great interest to the public. But what is the science behind these practices? Is there any research? Is it any good? What are the implications of this research for medicine and science? How should investigation of spiritual healing proceed, if at all? These are the questions this book explores.