This book is rooted in the conviction that human biology plays a critical role in understanding drug abuse and antisocial behavior. In the same breath, however, it fundamentally affirms the importance of the many social and environmental factors that influence our behavior across the life course. The study begins with an overview of the scope of the problem of drug abuse and crime, and an examination of how these problems often feed into one another. Building upon that foundation, the focus shifts to a review of cutting-edge research on the genetics and neurobiology of addiction and antisocial behavior across the developmental periods of childhood, adolescence, and