Contemporary neuroscience has made remarkable strides in our understanding of the developing adolescent brain--an area of study previously reserved for developmental psychologists and pediatric endocrinologists. With an eye toward the history and future of the field <em>Coming of Age</em> takes a look at the research that brought about this paradigm shift. Current advances in neuroscience have changed the way we think about everything--from how drugs and stress influence adolescent development to how hormones cause differing developmental trajectories among females and males.