This is a revisit of an episode originally published in September 2025.

How can we capture complex social phenomena impacting health in research?

Dr. Maria Glymour, Professor and Chair of the Department of Epidemiology at Boston University School of Public Health, has focused her research on the social factors influencing dementia and cognitive function in old age.

Salma and Maria analyze the dementia research landscape and discuss the key elements of the research process to capture complex social phenomena affecting health outcomes. From asking the right questions, to identifying appropriate methods and data, thinking about who the evidence will be useful for, and understanding the potential influences of funders, the conversation explores how research can help change policies. Maria breaks down the differences between causal inference, descriptive research, and associational research, using examples from her own work. She illustrates how these methodological distinctions depend on the questions that want to be answered and the intended audience.

Maria also reflects on some of the main questions for PhD applicants to ask themselves and emphasizes the need for applicants to highlight the specific passions that make their applications unique. As she puts it: “How much of your essay do you think anyone else could write?”

Listen to discover how you can apply these principles to your own work and make a meaningful impact in health scholarship, regardless of the step you are at in your career.

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Host: Dr. Salma Abdalla

How can we support people age safely and with dignity in their own homes? 

Dr. Susy Stark, is a Professor at the Washington University in St Louis School of Public Health. As an occupational therapist and community-based researcher, her work focuses on helping adults with chronic conditions and functional decline age successfully in place by using tailored environmental support and self-management strategies to prevent falls.  

In this episode, Dr. Stark joins Salma to speak about the overlooked role of the home environment in shaping health outcomes for older adults. Drawing on decades of clinical experience and research, Susy explains why falls are not inevitable consequences of aging, but largely preventable events shaped by the interaction between bodies, environments, and behavior. The conversation unpacks the demographic shift from an aging “pyramid” to an aging “column,” the misalignment between how homes are built and how people age, and why nearly half of all falls occur inside the home. 

At the center of the discussion is the Home Hazard Removal Program (HARP), an evidence-based intervention that pairs individualized home assessments with shared decision-making and hands-on implementation. Susy describes how modest environmental changes like improved lighting, handrails, and non-slip surfaces, can reduce fall rates by 38% while generating a positive return on investment for the health system. 

Beyond intervention design, the episode explores why community-based care remains underfunded in the U.S., what it takes to translate evidence into policy, and why aging should be understood not as a niche issue, but as a collective future we are all moving toward and must all help address comprehensively.  

A conversation about prevention, autonomy, and why supporting older adults is not just compassionate, it is essential for the sustainability of our health systems. 

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Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.   

How does research actually shape policy and when is evidence "good enough" to act on? 

In this episode, Salma Abdalla is joined by Dr Kathryn Backholer, Professor of Public Health Policy and co-director of the Global Centre for Preventive Health and Nutrition (GLOBE) at Deakin University in Australia. Kathryn’s work focuses on building evidence that decision-makers can use, starting with policy problems that need solving and working backward to generate the right kind of data. 

The conversation explores what it takes for research to move from journals into real policy action. Drawing on Kathryn’s work monitoring how gambling, alcohol, and junk food companies target young people online, they examine the tension between rigor and timeliness, the role of well-timed pilot studies, and why waiting for “perfect” evidence can sometimes mean missing critical policy windows. 

The episode is anchored in a live policy moment: Australia’s recent decision to delay social media access for people under 16. Kathryn discusses how evidence informed this world-first policy, what it can — and cannot — address, and how her team is now evaluating its effectiveness and unintended consequences. 

This episode is a candid look at the research-to-policy pipeline, the trade-offs involved in population-level decision-making, and what public health researchers can learn about designing work that is both rigorous and consequential. 

 Useful resources:  

Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.  

Does public health belong to people with a specific perspective, or is it—as the term implies—for the public at large? 

Today’s episode is different. Dean Sandro Galea, Dean and Distinguished Professor at WashU School of Public Health, returns to the podcast to discuss the Purple Public Health Project (PPHP), a new initiative he is launching with Salma. The PPHP aims to start a conversation about how public health thinks, acts, and communicates so we can reach people of all stripes, ideologies, and perspectives. Using concrete examples, they discuss whether public health should be grounded in science or values, or both. They also explore what each one of them thinks success would look like.  

Join Salma and Dean Galea as they commit to this process of thinking rigorously in public about public health and contribute to shifting the thinking of the field. 

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Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.  

In global health, evidence, authority, and distance are often deeply entangled. 

Dr. Seye Abimbola is Professor of Health Systems at the School of Public Health, University of Sydney. He is a leading voice in debates on decolonizing global health, with scholarship focused on health systems governance and epistemic injustice. He is also the founding editor-in-chief of BMJ Global Health and the author of The Foreign Gaze (2024). 

In this episode, Seye joins Salma to discuss his collection of essays interrogating the epistemological foundations of the field currently known as global health—and to reflect on what it might mean to reshape that field. Together, they examine who gets to define global health problems and solutions, noting how the field is often shaped by distant, powerful actors rather than those closest to the contexts in which interventions are meant to work. 

They also explore how knowledge is generated and valued in global health, questioning the routine elevation of randomized controlled trials as the gold standard for complex social interventions, unpacking why author affiliations can obscure deeper issues of “gaze” versus “pose,” and discussing how local practices are frequently overlooked or rendered illegible as evidence.

Throughout the episode, Seye and Salma invite listeners to reflect on positionality, take complexity seriously, and imagine what the “field formerly known as global health” could become. 

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Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.  

Will superbugs take over the world, as increasing media articles suggest?  

Dr. Sabiha Essack is Professor in Pharmaceutical Sciences at the University of KwaZulu-Natal (UKZN), where she established the Antimicrobial Research Unit, and the South African Research Chair in Antibiotic Resistance and One Health. Dr. Essack’s research focuses on evidence-informed strategies to mitigate antibiotic resistance through prevention and surveillance strategy using a One Health approach, which accounts for the health of humans, animals, plants and the environment.

In this episode, Sabiha joins Salma to discuss antimicrobial resistance (AMR) and its unequal impact on health. While AMR is driven by indiscriminate use and misuse of antimicrobials globally, low- and middle-income countries—with weak health and regulatory systems, limited access to diagnostic tools and alternative solutions, and vulnerable populations—bear most of the burden. Dr. Essack highlights the importance of equitable access to antibiotics, diagnostics, and vaccines, as well as the critical role of governance, financing, stewardship, and environmental controls. They also analyze current AMR communication approaches and question whether fear-based messages are effective and appropriate.

Considering the global and polycentric scope of this issue, with no single right answer, this episode underscores the need for innovative, equitable alternatives to address the growing AMR challenge. 

Useful resources:  

Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.  

When tribunals like the International Criminal Court prosecutes gender-based violence in conflict, what evidence do they need? And who gathers it?

Kim Thuy Seelinger is a Professor of Practice at Washington University School of Public Health and former senior coordinator for Gender-Based Crimes at the International Criminal Court in the Hague until the Spring of 2025. For over two decades, she's worked at the intersection of international criminal law and public health.

In this episode, Kim and Salma explore how gender-based violence manifests in conflict—not just sexual violence, but forced starvation, attacks on healthcare, reproductive coercion, and denial of education. They examine how international law distinguishes between war crimes, crimes against humanity, and genocide, and why proving these crimes remains so difficult, especially when prosecuting high-level perpetrators.

The conversation tackles a fundamental question: How can public health methods strengthen international justice? Kim explains how epidemiological data, trauma-informed approaches, and understanding of health systems can help document crimes at scale, establish patterns of violence, and ensure reparations address survivors' long-term needs. But she's also honest about the tensions—between prevention and punishment, between individual accountability and systemic change, and between what the law promises and what survivors actually experience.

This is a conversation about breaking down silos between fields that urgently need each other and confronting the gap between justice on paper and justice in practice.

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Host: Dr. Salma Abdalla

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.

What is global health—and who gets to define it? 

For decades, the field has claimed universality while being shaped largely by specific institutions, priorities, and assumptions. But what happens when we center the places where most global health “problems” are identified? What does it mean to tell someone living in a Dhaka slum to shelter in place during a pandemic? 

In this episode, Salma is joined by Dr. Sabina Faiz Rashid, Professor and Mushtaque Chowdhury Chair in Health and Poverty at the BRAC James P. Grant School of Public Health in Bangladesh; Director of the Center of Excellence for Gender, Sexual and Reproductive Health and Rights; and Honorary Professor at the Liverpool School of Tropical Medicine. As a medical anthropologist whose career has been rooted in the alleys, kitchens, and courtyards of Dhaka’s urban slums, Dr. Rashid has spent decades challenging how we think about health, poverty, gender—and whose knowledge counts. 

Together, they examine what global health often misses: the over-reliance on disease-focused indicators, the tendency to blame individuals for choices that are shaped by circumstance, and the habit of designing interventions far from the communities they attempt to serve. Drawing on vivid examples from Dr. Rashid’s ethnographic work, they explore how a mother’s health depends not only on symptoms or clinical markers, but on whether water runs for 20 minutes today, whether her husband finds work, and whether she has more than one egg to feed her children. 

The conversation moves from methodology to power. Salma and Sabina discuss why qualitative and quantitative approaches both matter—and why neither is meaningful without genuine community partnership. They also consider the limitations of current “decolonization” conversations, suggesting that simple binaries obscure the complex power dynamics that exist both between and within countries. 

This episode is an invitation to rethink global health from the ground up—its assumptions, its methods, its politics, and its future. It’s a conversation for anyone who believes public health must reflect the lived realities of the people it aims to serve. 

Useful resources:  

- "Sabina F Rashid, PhD." BRAC University, www.bracu.ac.bd/about/people/sabina-f-rashid-phd. Accessed 24 Nov. 2025. 

- Rashid SF. Poverty, Gender and Health in the Slums of Bangladesh: Children of Crows. Routledge; 2024. 

Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.  

What do we mean when we say health is a human right? Dr. Benjamin Mason Meier is a Professor of Global Health Policy at the University of North Carolina (UNC) at Chapel Hill who has focused his research on the development, evolution, and application of human rights-based approaches to health.  

In this episode, Dr. Meier joins Salma to explore the foundations of health as a human right—from its post-World War II origins to its development in international law. They discuss the obligations this framing creates for governments and international organizations, how rights must translate into tangible policies that improve health outcomes, and the tensions between advocacy and accountability. They also address the politics related to global health governance and human rights and consider what a human rights approach to health might look like in a future shaped by AI, climate change, and increased polarization. 

Join this episode to learn about the difference between health as a human right as a slogan and health as a human right as a legal obligation—and why that distinction matters for global health's future. 

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Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.

What can Reddit, Instagram, and other digital platforms tell us about population health? Dr. Yulin Hswen, associate professor at the University of California San Francisco and associate editor of JAMA and JAMA+ AI, is a computational epidemiologist using big data to understand population health in our increasingly digital world. 

In this episode, Salma sits down with Dr. Hswen to explore what our digital environments can tell us about public health. From Reddit threads revealing untold health experiences to phone data mapping mobility patterns during disease outbreaks, Dr. Hswen challenges us to see social media platforms and online data not just as communication tools but as health environments that shape—and sometimes distort—population well-being. 

Dr. Hswen shares how a personal healthcare experience first sparked her interest in digital data and reflects on what these traces can reveal about collective behavior, equity, and trust. The conversation dives into the ethics of digital and AI research—issues of privacy, representation, and accountability—and unpacks her proposal of “virtuosity” as the sixth V of big data. Dr. Hswen also discusses her work on ethical guidelines for AI using in public health and clinical medicine and how she approaches her editorial work at JAMA and JAMA+ AI and what excites her about the future of computational epidemiology and the use of AI in clinical and public health research. 

Whether you're a researcher considering how to incorporate digital methods and AI into your work or simply curious about what your online activity reveals about population-level health patterns, this episode offers essential perspectives. 

Useful resources:  

Host: Dr. Salma Abdalla 

The views and opinions expressed by the guest in this episode do not necessarily reflect those of their institution, the funders, or the podcast team.