Xenia Anna Häfeli is a post-doctoral research associate at the Experimental and Clinical Pharmacopsychology laboratory at the Psychiatric University Hospital Zurich, led by Prof. Boris Quednow. In parallel, she works as a psychotherapist with a focus on psychosomatics and rehabilitation. She completed her BSc and MSc in Psychology at the University of Zurich and obtained her doctoral degree from the University of Bern. During her PhD, she used network modeling to investigate early symptom dynamics and transdiagnostic mechanisms in emerging psychopathology among adolescents. Her current research is centered on understanding the impact of adolescent substance use on cognition and real-life functioning.