Contemporary neuroscience has made remarkable strides in our understanding of the developing adolescent brain - an area of study previously reserved for developmental psychologists and paediatric endocrinologists. With an eye toward the history and future of the field, 'Coming of Age' 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. Sisk and Romeo guide students and non-specialist researchers alike through the basic science of brain and behavioural development. Important social and ethical questions are raised including: Why does puberty continue to occur at a younger age? Why does teenage behaviour embrace risk and volatility?