There have also been major advances in the clinical management of pituitary disorders. Do they cause boys and girls to play differently or to have different interests? This original and accessible book will be of interest to psychologists, neuroscientists, pediatricians, and educators, as well as the general public. This book brings both of these perspectives to bear on the questions, tracing the factors that influence the brain, beginning with testosterone and other hormones during prenatal life, and continuing through changing life situations and experiences that can sculpt the brain and its activity, even in adulthood. The second edition published in and there have been incredible changes in both the research and clinical aspects of the pituitary over the past 8 years — from new advances in growth hormones to pituitary tumor therapy. The first chapter will be completely new — placing a much greater emphasis on physiology and pathogenesis. Do they contribute to the preponderance of men in science or women at home? Since the publication of the second edition of The Pituitary, in , there have been major advances in the molecular biology research of pituitary hormone production and action and there is now a better understanding of the pathogenesis of pituitary tumors and clinical syndromes resulting in perturbation of pituitary function. It is therefore time for a new edition of The Pituitary. Do they explain differences in sexual orientation within each sex group? The third edition will continue to be divided into sections that summarize normal hypothalamic-pituitary development and function, hypothalamic-pituitary failure, and pituitary tumors; additional sections will describe pituitary disease in systemic disorders and diagnostic procedures, including imaging, assessment of the eyes, and biochemical testing. It is also suitable for use in graduate and undergraduate courses on the psychology of gender or on hormones and behavior. Other chapters will be completely updated and many new author teams will be invited. These developments have improved the worldwide consensus around the definition of a "cure" for pituitary disease, especially hormone hypersecretion, and hence will improve the success or lack of success of various forms of therapy. This influence has important implications for understanding the social roles of men and women in society, the different educational and emotional issues that confront males and females, the legal rights of those whose sexual orientation or gender identity do not correspond to norms, and even standards of clinical care for people born with physical intersex conditions that make it difficult to classify a person as male or female at birth.