Diego Palacios is an Assistant Professor at the Society and Health Research Center at Universidad Mayor, Chile. He is also a young researcher at the Millennium Nucleus for the Evaluation and Analysis of Drug Policies (nDP) and the Millennium Nucleus on Sociomedicine (SocioMed). His research focuses on the interplay of peer relationships (e.g., friendships, academics, popularity) and adolescent behavior (academic performance, substance use, and mental health).