This is a book that should be in every home, for any person who cares about their health and the health of their loved ones. There is no unnecessary information here - only information that is understandable to absolutely everyone and is vital: - what pain warns of; - how various diseases manifest themselves; – what this or that symptom means; – when you need to call a doctor immediately; – what tests and examinations are needed; - what you need to take to the hospital; - how to provide first aid; - what medications should definitely be in your first aid kit. The author of the book is Konstantin Aleksandrovich Krulev - a practicing doctor, cardiologist, who worked in an ambulance for a long time. His vast practical experience and highest professionalism form the basis of this book.