Naja Hulvej Rod is Professor of Epidemiology and Director of the Copenhagen Health Complexity Center at the University of Copenhagen. Her expertise spans various domains, including sleep, health inequality, young adult health, and early life adversity, with a focus on health complexity, causal inference, and life course mechanisms. She has a particular interest in complex systems theory and how it intersects with methodological insights from causal inference theory. She has extensive expertise in working with longitudinal datasets and register-based research. Naja Hulvej Rod is PI of the Danish Life Course Cohort (DANLIFE) Study, which leverages multi-dimensional exposome data covering the totality of measured lifetime exposures across multiple social, environmental, and biological dimensions in 2 million people. She participates in numerous boards and committees across Europe, and she has been awarded several prestigious grants and awards, including the Elite Researcher Prize 2022 and an ERC consolidator grant.