A companion to Mental Health Awareness vol 1. This volume explains diagnosis & treatment of mental illness with a brief history of how mental illness was viewed, from early times to the 20th century. Also covered is the work of mental health professionals, case studies, an exercise in diagnosis and a chapter on stress. note - DIAGNOSIS OF MENTAL ILLNESS SHOULD ONLY BE UNDE A companion to Mental Health Awareness vol 1. This volume explains diagnosis & treatment of mental illness with a brief history of how mental illness was viewed, from early times to the 20th century. Also covered is the work of mental health professionals, case studies, an exercise in diagnosis and a chapter on stress. note - DIAGNOSIS OF MENTAL ILLNESS SHOULD ONLY BE UNDERTAKEN BY PROFESSIONALS. Readers worried about a relative or friend should contact a mental health professional via their GP.