Heather Wardle

My work, my path, and why I study gambling as a public health issue

I am a public health researcher working at the intersection of gambling, social inequality, and population-level harm. Over the course of my academic career, my focus has remained consistent: understanding how gambling systems produce harm, who is most affected, and how policy can meaningfully reduce that harm rather than merely shifting responsibility onto individuals.

My work is grounded in the belief that gambling-related harm is not an inevitable by-product of personal weakness or poor decision-making. It is a measurable, preventable outcome of commercial environments, regulatory choices, and social conditions. This perspective has shaped both my research agenda and my engagement with policy, regulation, and public debate in the United Kingdom and beyond.

Early academic foundations and methodological grounding

My academic background is rooted in social research and population health. From early on, I worked extensively with large-scale datasets, national surveys, and longitudinal studies examining health, wellbeing, and social participation. These methodological foundations were formative. They taught me to look beyond individual cases and to focus instead on patterns, distributions, and gradients of harm across society.

Before gambling became the central focus of my work, I was already interested in how social environments shape health outcomes. I examined how deprivation, insecurity, and unequal access to resources consistently translated into worse health indicators. When I began working with data that included gambling participation, the parallels were immediately clear. Gambling harm followed the same social gradients as other public health issues: it clustered in disadvantaged communities and intersected with mental health, debt, and family stress.

This realisation marked a turning point. Gambling was not a marginal leisure activity with isolated risks; it was a population-level public health concern.

Gambling as a public health issue, not an individual failing

One of the most persistent challenges in gambling research is the dominance of individualised explanations. Much of the public discourse has historically framed harm as the result of personal irresponsibility, poor self-control, or psychological vulnerability. My work has consistently challenged this framing.

Using nationally representative datasets, I have shown that harm extends well beyond those classified as “problem gamblers.” Financial stress, relationship breakdown, anxiety, and reduced wellbeing affect a much broader group of people who gamble at lower levels but are exposed to risky products and environments. This evidence undermines narrow clinical models and supports a continuum-of-harm approach, similar to those used in alcohol and tobacco research.

London School of Hygiene & Tropical Medicine: national surveys and evidence building

A major phase of my career was spent at the London School of Hygiene & Tropical Medicine (LSHTM), where I worked on some of the UK’s most important population-level gambling studies. At LSHTM, I was involved in analysing data from national surveys such as the Health Survey for England, integrating gambling variables into broader assessments of health and wellbeing.

This work allowed us to ask critical questions:

• How does gambling relate to mental health outcomes?
• What is the relationship between gambling, debt, and social participation?
• Which groups experience the greatest concentration of harm?

The findings consistently pointed in the same direction: gambling-related harm is socially patterned and disproportionately affects already disadvantaged groups. These results have been cited in academic journals and government reports, and they continue to inform debates about regulation and prevention.

Engaging with policy and regulation

From early in my career, I have engaged directly with policy processes. I have provided evidence to parliamentary inquiries, government consultations, and regulatory reviews. This engagement has never been about advocacy alone; it has been about ensuring that policy decisions are informed by independent, methodologically robust evidence.

One recurring theme in my policy work has been the limits of so-called “responsible gambling” tools. While self-exclusion schemes and player information can play a role, the evidence shows they are insufficient when used in isolation. Structural factors — product design, marketing intensity, availability, and affordability — matter far more at the population level.

Current work at the University of Glasgow

I am currently based at the University of Glasgow, where my research continues to focus on gambling harm within a broader social policy and public health framework. Working in a multidisciplinary environment has strengthened my approach, allowing collaboration with sociologists, economists, and policy scholars.

At Glasgow, my work increasingly examines how gambling fits into wider systems of commercial harm. This includes comparisons with alcohol, tobacco, and emerging digital products, as well as analysis of regulatory capture and conflicts of interest. The aim is not simply to document harm, but to identify leverage points for effective intervention.

Regulation, independence, and the future of gambling policy

My work has never existed in isolation from policy. From an early stage, I understood that producing evidence was only part of the task. The more difficult challenge was ensuring that evidence was not diluted, misrepresented, or selectively used when commercial interests were at stake. Gambling research operates in a contested space, and navigating that space has shaped much of my professional life.

Engaging with government, regulators, and parliamentary processes

Over the years, I have contributed evidence to parliamentary committees, government departments, and regulatory consultations in the United Kingdom. This has included written submissions, expert testimony, and advisory roles connected to gambling regulation and public health.

My engagement has been driven by a simple principle: population-level evidence must guide policy, not industry narratives or isolated anecdotes. When policy debates focus narrowly on individual responsibility, they obscure the broader determinants of harm. I have repeatedly emphasised that regulation must address product design, accessibility, marketing exposure, and affordability, because these factors shape behaviour long before any individual choice is made.

In parliamentary settings, I have often been asked to clarify why existing “responsible gambling” frameworks fail to reduce harm at scale. The answer, supported by empirical evidence, is that voluntary tools and informational interventions cannot compensate for environments engineered to maximise engagement and spending.

Independence, funding, and conflicts of interest

One of the most difficult and sensitive aspects of gambling research concerns funding. I have been explicit throughout my career about the risks associated with industry-funded research. While transparency is essential, transparency alone does not eliminate structural bias. Funding sources shape research questions, methodologies, and the interpretation of findings in ways that are not always visible.

For this reason, I have consistently argued for independent funding mechanisms, separated from commercial operators. This position has not always been popular, but it is necessary if research is to maintain credibility and public trust. My work has examined how industry influence can subtly reshape research agendas, prioritising individual behaviour over systemic risk.

This concern is not unique to gambling. Similar debates have occurred in tobacco, alcohol, and food policy. The lesson from those fields is clear: public health advances when evidence is institutionally protected from commercial pressure.

Gambling harm as part of a wider system of commercial determinants

In recent years, my research has increasingly situated gambling within the broader framework of commercial determinants of health. Gambling does not operate in isolation; it exists alongside other profit-driven industries that produce harm through normalised consumption, aggressive marketing, and regulatory loopholes.

By adopting this wider lens, it becomes possible to identify shared mechanisms:

• targeting of disadvantaged communities,
• digital personalisation and behavioural tracking,
• framing harm as an individual failure rather than a systemic outcome.

This perspective allows policymakers to draw on established regulatory tools rather than treating gambling as an exceptional case. It also reinforces the argument that harm reduction must be proactive and structural, not reactive and individualised.

International collaboration and comparative policy analysis

Although my work is rooted in the UK context, I collaborate extensively with researchers internationally. Comparative policy analysis has been particularly valuable in highlighting how different regulatory choices produce different outcomes.

Working with colleagues in Europe, Australia, and North America, I have examined how restrictions on advertising, stake limits, and product speed affect harm prevalence. These comparisons demonstrate that policy design matters. Jurisdictions with stronger regulatory frameworks consistently show lower levels of harm, even when gambling participation remains widespread.

International collaboration has also reinforced the importance of shared terminology and measurement. Without consistent definitions of harm, cross-national learning becomes difficult. Developing robust, transferable indicators of gambling-related harm remains a key priority in my work.

Publications, reports, and policy-facing outputs

Reflections on impact and responsibility

Looking back, I am conscious that my work has sometimes been characterised as critical or confrontational. I do not see it that way. My responsibility as a researcher is to follow the evidence and to communicate its implications honestly, even when they are uncomfortable.

Gambling-related harm is preventable. The evidence supports this conclusion clearly and consistently. The question is not whether harm can be reduced, but whether there is sufficient political will to implement evidence-based regulation in the face of commercial pressure.

The future of gambling research and regulation

Looking forward, I believe the future of gambling policy lies in:

• stronger statutory regulation,
• limits on product design features linked to harm,
• restrictions on marketing and sponsorship,
• and sustainable, independent funding for research and treatment.

Research must continue to evolve alongside rapidly changing digital gambling environments. This includes greater attention to online platforms, data-driven personalisation, and the convergence of gambling with gaming and financial technologies.

My role, as I see it, is to continue producing independent evidence, mentoring the next generation of researchers, and ensuring that public health remains central to gambling policy debates.

I have spent my career arguing that gambling should be understood not as a matter of individual failure, but as a systemic public health issue shaped by policy choices. That position remains unchanged. If my work has contributed in any way to reframing the debate, then it has served its purpose.