A.M. Vasyutin is a psychotherapist, trainer and supervisor of the Professional Psychotherapeutic League, author of 8 books and many articles on self-regulation of the body. In this book, the author, from new and original positions based on extensive clinical experience, analyzed the main theories of the development of diseases and methods of their treatment, which are available in modern psychotherapy. Written easily and accessible, this book will find its reader among psychologists and psychotherapists, teachers and students, as well as all those who want to understand the roots of their diseases and psychological problems and get rid of them.