Kavita Batra (Medicine), in collaboration with the GBD 2021 Japan Collaborators, co-authored the study, "Three Decades of Population Health Changes in Japan, 1990-2021: A Subnational Analysis for the Global Burden of Disease Study 2021," published in The Lancet Public Health. This research provides a comprehensive analysis of mortality, morbidity, and risk factors over three decades, offering critical insights into Japan’s evolving health landscape. The findings are particularly valuable for policymakers and healthcare professionals, highlighting priority areas for intervention and policy development to reduce disease burden and promote health equity. The study underscores the importance of targeted public health strategies to address the challenges of an aging population. Dr. Batra collaborates with international teams to conduct interdisciplinary research on global health issues.