Carla Sharp, PhD, a leading expert in social cognition and psychiatric disorders at the University of Houston, shares her insights on borderline personality disorder (BPD). She discusses the complexities of diagnosing BPD, particularly in adolescents, and highlights the importance of nurturing environments. She also addresses the shift from categorical to dimensional models of understanding personality disorders, emphasizing the need for continuous empirical research. Carla offers practical strategies for family members to support loved ones affected by BPD.