Olalla Cutrín, PhD, is a researcher member of the UNDERISK group (Unit for research on risk behaviours and developmental impairments) at the University of Santiago de Compostela (Spain). She is currently carrying out her postdoctoral project at the Global Center for Applied Health Research (Arizona State University) under a scholarship granted by the Government of the Autonomous Community of Galicia. This project focuses mainly on understanding the risk factors that lead to the development of problematic behaviors during adolescence, such as substance use. Her research specifically aims to deepen the role of parenting and peers as major variables of risk. Currently, she is involved in projects that focus on preventing early conduct problems as well as adolescent drug use.