This book aims to help readers distinguish between minor issues and major health problems that through simple lack of knowledge could cost you your life. It addresses the primary potential responses to a health issue: when should we go to the ER? What are telltale symptoms of something serious? Chapters are organized according to areas of the body (my chest hurts, my stomach hurts, my head hurts), in each case providing a list of questions to ask to identify the level of emergency and type of pathology involved.