The new book by Dr. Sergei Vyalov describes the 100 most common and dangerous conditions that threaten human life: shock, coma, organ problems, exacerbations of chronic diseases, poisoning, injury and even childbirth. Their symptoms are listed, explanations are given of how and why these emergencies develop, and the tactics of pre-medical and medical care are given in accordance with the standards, research results, recommendations and orders of the Ministry of Health of the Russian Federation.