The goal of this online course is to explore healthy social and emotional development including self-regulatory and interpersonal abilities, empathy development, prosocial behavior, and well-being across development periods from birth to young adulthood. Guided by interpersonal neurobiology (an interdisciplinary field that integrates attachment research and emerging findings from neuroscience) and interdisciplinary research on social emotional learning (SEL) programs, we explore the influence of primary relationships and contexts (family, peers, school, community) in shaping social-emotional competencies, emotional intelligence, and emotional learning across developmental periods.