Tyler J. VanderWeele

Tyler J. VanderWeele, Ph.D., is the John L. Loeb and Frances Lehman Loeb Professor of Epidemiology in the Departments of Epidemiology and Biostatistics at the Harvard T.H. Chan School of Public Health, and Director of the Human Flourishing Program and Co-Director of the Initiative on Health, Religion and Spirituality at Harvard University. He holds degrees from the University of Oxford, University of Pennsylvania, and Harvard University in mathematics, philosophy, theology, finance, and biostatistics. His methodological research is focused on theory and methods for distinguishing between association and causation in the biomedical and social sciences and, more recently, on psychosocial measurement theory. His empirical research spans psychiatric and social epidemiology; the science of happiness and flourishing; and the study of religion and health. He is the recipient of the 2017 Presidents’ Award from the Committee of Presidents of Statistical Societies (COPSS). He has published over four hundred papers in peer-reviewed journals; is author of the books Explanation in Causal Inference (2015), Modern Epidemiology (2021), and Measuring Well-Being (2021); and he also writes a monthly blog posting on topics related to human flourishing for Psychology Today. You may also visit his School of Public Health Profile.

Contacttvanderw [at]

Flynn Cratty

Flynn J. Cratty, Ph.D., serves as Associate Director of the Program. He oversees its day-to-day functions and engagement with Harvard faculty and students. A historian of early modern Europe, he is a graduate of Duke University (B.A.), Southern Seminary (M.Div.), and Yale University (M.A., M.Phil., and Ph.D.). His dissertation, “The Soul in Paraphrase”: Prayer and the Changing Mental Worlds of Early Modern France and England, won Yale's university-wide Theron Rockwell Field Prize. Prior to arriving at Harvard, Flynn was a John and Daria Barry Postdoctoral Research Fellow in the James Madison Program at Princeton University.

Contactflynncratty [at]

Matthew Lee

Matthew T. Lee, Ph.D., is the Program's Director of Empirical Research and he leads the Community of Practice. He received his Ph.D. in sociology from the University of Delaware in 2000. He was a Professor and Chair of sociology and an Interim Chair in anthropology and classical studies at the University of Akron, with a secondary appointment in criminal justice studies, in addition to serving as a Faculty Fellow in both the Center for Conflict Management and the Center for Experiential Learning.  His current research explores topics such as benevolent service to others, organizational compassion capability, and the integration of social science and the humanities. He is co-editor of Measuring Well-Being: Interdisciplinary Perspectives from the Social Sciences and the Humanities.

Contact: matthew_lee [at]

Ying Chen

Ying Chen, Sc.D., serves as an empirical research associate and data scientist for the Program. She completed her doctoral training in social epidemiology at Harvard T. H. Chan School of Public Health in 2016, and received her MSc in global health from the University of Oxford in 2011. Her current research focuses on identifying psychosocial factors such as positive family relationships and religion that may help promote human flourishing and well-being.

Contactyingchen [at]

Jeffrey Hanson

Jeffrey Hanson, Ph.D., is a senior philosopher for the Program. He received his Ph.D. from Fordham University in 2005. He was an adjunct assistant professor of philosophy at Boston College from 2005 to 2010. From 2010 to 2015 he was a research fellow at Australian Catholic University in Melbourne. He remains an honorary fellow of their Institute for Religion and Critical Inquiry. He is the editor of Kierkegaard as Phenomenologist: An Experiment (Northwestern University Press) and co-editor with Michael R. Kelly of Michel Henry: The Affects of Thought (Bloomsbury). His first monograph, Kierkegaard and the Life of Faith: The Aesthetic, the Ethical, and the Religious in "Fear and Trembling" was published by Indiana University Press in 2017.  Dr. Hanson’s research focuses on issues in philosophy of religion, phenomenology, aesthetics, and ethics. His writings on Kierkegaard, French phenomenology of religion, and the arts are motivated by an ongoing interest in the practical value of philosophy for human flourishing, and he draws on the whole history of philosophy and theology for both his scholarly work and popular publications on literature, music, film, and popular culture.

Contact: jhanson [at]

Richard Cowden

Richard G. Cowden, Ph.D., is a social-personality psychologist and the psychology research associate for the Program. He completed his doctoral training at the University of KwaZulu-Natal, South Africa. He is broadly interested in intersections between cultural-contextual dynamics and psychosocial processes that shape adaptive functioning, personal growth, and well-being. Much of his research agenda focuses on character strengths and positive adjustment, especially the implications of forgiveness for health and well-being in diverse cultures and contexts. He has written 40+ scholarly articles and book chapters that address various aspects of human flourishing in a wide range of populations.

Contact: rcowden [at]

Jennifer Wortham

Jennifer S. Wortham, Dr.PH, is a religion, spirituality, and forgiveness research associate for the Program. She earned her doctorate in public health at the UCLA, Fielding School of Public Health, and she is a certified Lean Six Sigma Master Black-belt.  She serves as a strategy and population health executive and consultant for leading healthcare organizations in the public and private sectors.  Dr. Wortham has extensive experience in enterprise transformation.  She teaches graduate-level courses in project management, Lean, Six Sigma, and quality improvement methods.  In 2019, Dr. Wortham authored a memoir on forgiveness titled A Letter to the Pope: The Keeper of the Nest (New Insights Press).  She served as an advisory member of the Spirit Fire Christian Restorative Justice Board, and she currently serves on the Survivor Advisory Panel for the Pontifical Commission for the Protection of Minors and Vulnerable Adults.   Dr. Wortham's research focus is on the impact of Moral Injury, Adverse Childhood Events, and Trauma to health outcomes.   She is the founder and Chair of the April 8, Global Collaborative to establish an annual day of observance for the prevention and healing of child sexual abuse.

Brendan Case

Brendan W. Case, Th.D., serves as the Program's Associate Director for Research, working both to develop integrative research strategies that draw together explorations of human flourishing from across the social sciences and humanities, and to disseminate the Program's work through external partnerships and public events. Dr. Case is the author of The Accountable Animal: Justice, Justification, and Judgment (T&T Clark, 2021), and co-author (with William Glass) of Least of the Apostles: Paul and His Legacies in Earliest Christianity (forthcoming from Pickwick Press). His work has also appeared in journals such as Modern Theology, Studies in Christian Ethics, Franciscan Studies, and Pro Ecclesia. His works in-progress include a long-term project to develop a theological account of love that brings fundamental Christian convictions into conversation with classic debates in moral philosophy and contemporary debates in the social and behavioral sciences. Before coming to Harvard, he completed his Th.D. at Duke Divinity School, and served as a Postdoctoral Research Associate at Baylor University's Institute for Studies of Religion.

Contact: brendan_case [at]

Katelyn Long, DrPH, MSc, is a Research Associate for the Program. She was John and Daria Barry postdoctoral fellow at the Human Flourishing Program at Harvard University and a postdoctoral fellow at the Harvard T.H. Chan School of Public Health. Her current work focuses on determinants of well-being, group dynamics of religion on human flourishing, and the development of tradition-specific spiritual well-being measures. She completed her doctoral studies at Boston University School of Public Health where her dissertation focused on the role of faith-based and charitable health providers in health systems. Her other public health work has been in the areas of chronic disease prevention, adolescent health, mental health, and positive deviance in vulnerable communities. She earned her Master of Science in Public Health from the University of Utah and her undergraduate degree in religion with a minor in music from Vanguard University.

tim lomas

Tim Lomas, Ph.D., is a Psychology Research Scientist in the Department of Epidemiology at the Harvard T.H. Chan School of Public Health, and part of the Human Flourishing Program at Harvard University. Dr. Lomas's research mainly focuses on cross-cultural perspectives on well-being, and especially on concepts and practices deemed ‘non-Western.’ Such research includes assisting with the Global Flourishing Study, developing a lexicography and conceptual map of ‘untranslatable’ words relating to well-being, and working with Gallup to create and analyze new well-being-related items for their world poll. Tim has published over 80 papers and 11 books relating to wellbeing, involving topics/approaches including linguistics, semiotics, art, emotional dialectics, balance/harmony, systems theory, social theory, politics, gender, and Buddhism. His latest book, entitled Happiness, will be published in 2022 by MIT Press as part of their Essential Knowledge series.


Current Postdoctoral Fellows

Pedro Antonio Pedro Antonio de la Rosa Fernández Pacheco, Ph.D., MPH, is a postdoctoral fellow with the Human Flourishing Program at Harvard University. His current research focuses on the study of risk and protective factors for alcohol use among adolescents. He completed his doctoral studies in Biomedicine and Applied Medicine at University of Navarra, where his dissertation focuses on the effectiveness of gamification as a tool to improve school-based health education programs. He completed a Preventive Medicine and Public Health residency at Hospital Complex of Navarra. He received his master’s degree in Public Health from the University of Alcalá de Henares, and an undergraduate degree in Medicine from the University of Navarra.
Joanna Hong

Joanna Heejeong Hong, Ph.D., is a John and Daria Barry postdoctoral fellow at the Human Flourishing Program at Harvard University and a postdoctoral fellow at the University of British Columbia. Her research examines how social relationships impact physical health and psychological well-being across the adult life span. She is particularly interested in understanding how character strengths and virtues can help individuals cultivate positive relationships and better navigate a lack/absence of meaningful relationships (loneliness, social isolation). She also aims to understand how these processes are influenced by social structural factors including, socioeconomic status, race/ethnicity, and culture. In addition to basic research, she is committed to translational research and works with organizations such as AARP, UnitedHealthcare, and IDEO, to build and refine interventions aimed at enhancing people’s health and well-being.

W Kaftanski

Wojciech T. Kaftanski, Ph.D., is a postdoctoral fellow and Communications Associate at the Human Flourishing Program. He was previously a Visiting Faculty Fellow at the Program and a Research Fellow at the Institute of Philosophy at KU Leuven, Belgium. He is the author of “Kierkegaard's Existential Mimesis: A Study of Imitation, Existence, and Affect" (Routledge). His research puts modern and contemporary thinkers in dialogue to advance the contemporary conversation on the role of imitation, imagination, and ethics for exemplarity and role modelling. He holds a Ph.D. in Philosophy from the Australian Catholic University in Australia where he taught courses in philosophy and theology. Dr. Kaftanski has previously been a Visiting Scholar in the Søren Kierkegaard Research Centre at University of Copenhagen (2015) and a House Foundation Fellow at Hong Kierkegaard Library at St. Olaf (2011).
Koichiro Shiba Koichiro Shiba, MPH, Ph.D., is a postdoctoral fellow with the Human Flourishing Program at Harvard University and the Departments of Epidemiology and Social and Behavioral Sciences at Harvard's T.H. Chan School of Public Health. His research applies epidemiologic thinking and methods to better understand social determinants of health. Specifically, he examines the impacts of disasters (e.g., earthquakes/pandemics) on the health of survivors along with the individual- and community-level factors that make people more or less resilient. He also investigates the health effects of positive social/psychological factors (e.g., purpose in life) and changing distributions of human flourishing across time and space globally. He earned a Ph.D. in Population Health Sciences from Harvard University. He received his master’s degree in public health and undergraduate degree in health sciences from the University of Tokyo.
Renae Wilkinson

Renae Wilkinson, Ph.D., is a postdoctoral fellow with the Human Flourishing Program at Harvard University. Her research examines the role of family and educational pathways to life-course health and well-being with a concentration on parental social and economic resources during adolescence. She completed her doctoral studies in sociology at Baylor University where her dissertation focused on childhood parental death and its associations with health and educational attainment across the transition to adulthood. She earned master's degrees from Baylor University in sociology and the University of Portland in business administration, and completed her undergraduate studies in sociology at Portland State University.