To what extent are human beings capable of changing their physical characteristics and behavioural patterns over the course of their lives? This question has engaged scientists for decades: the fundamental issue is plasticity. In this wide-ranging book, Richard Lerner explores the relevant theory and empirical evidence in a variety of disciplines: molecular genetics, neuroanatomy, neurochemistry, evolutionary biology, anthropology, comparative and developmental psychology, and sociology. The processes studied by each of these disciplines show evidence of plasticity. Conclusions about...