In this lecture, Dr Oliver Baumann provides an overview of the current research on adolescent brain development. By drawing on findings from various research methods, the goal is to show that the teenage brain is shaped by biological and experiential factors allowing adjustment to the unique social, physical, and intellectual challenges of adolescence. The talk covers topics ranging from human imaging showing hormonal-driven brain responses to socially relevant cues to animal studies that allow for controlled investigations of testosterone and alcohol impacts on brain development. The talk concludes by considering the societal and legal implications of those findings.