Incorporating principles and findings from molecular biology, neuroscience, and psychological and sociocultural sciences, Human Behavior employs a decidedly integrative biosocial, multiple-levels-of-influence approach. This approach allows students to appreciate the transactional forces shaping life course opportunities and challenges among diverse populations in the United States and around the world. includes case studies, Spotlight topics, and Expert's Corner features that augment the theme of each chapter. This book is rooted in the principles of empirical science and the evidence-based paradigm, with coverage of: Unique in its orientation, proposes a new integrative perspective representing a leap forward in the advancement of human behavior for the helping professions.