__Dimensions of Human Behavior_: The Changing Life Course, Seventh Edition_, and its companion, cover the content for the social work theories course, titled Human Behavior in the Social Environment. Our books are unique in that they present a unique organizing framework that helps faculty teach the course. It divides the course content into three primary dimensions: Person, Environment, and Time. This book represents the time component and covers the lifespan or life course perspective. This SEVENTH EDITION has been updated with cases and contemporary issues related to gender & sexualities, race & ethnicity, social class and disability across the lifespan. Covering the life course from conception to very late adulthood, this edition also includes advances in neuroscience, traumatic stress. and the impacts of information, communication and medical technologies.