Synopsis This book, one in the series of book on animal groups, focuses its attention onto mammalian endocrinology. The effective regulation of the body's functions requires not only the constant modulation and integration by the nervous system, but also chemical control by the endocrine system. As such, the neuro-endocrine system is one of the most crucial body systems, ensuring that all other systems are run in smooth fashion. The book not only devotes its pages to detailed explanation of the endocrine system of mammals, especially humans, but also the larger role of the whole neuroendocrine system. It also gives space to a discussion of the diseases of the endocrine system, stressing upon its importance as supporter of chemical messengers and hormones. The illustrations and diagrams in the books serve to foster the visual information.