Physiologic adaptations and pathologic states that result from changes of target tissue sensitivity to hormones are vital concerns in endocrinology. Part of the Modern Endocrinology Series, this text features an overview of the human hormone resistance and hypersensitivity syndromes due to pre-receptor, receptor and postreceptor abnormalities. Focuses on the pivotal study of the etiology of common conditions, such as obesity and essential hypertension, in chapters written by experts who have performed primary research in hormone action. A Brandon-Hill recommended title.