Prevention is the buzzword of recent government health policy, yet real prevention won’t happen without psychology. Why? Because prevention is about people: their behaviours, motivations, fears, habits, and choices. And understanding those behaviours is what health psychology does best.
Our health systems know they can’t simply throw more resources at hospitals and expect prevention to take care of itself. The challenge isn’t just clinical – it’s behavioural. Why do people smoke when they know the risks? Why do some delay seeking help for symptoms? Why do others struggle to stick with medication or make lifestyle changes that could benefit their health?
Health psychology is the science of what we think, feel, and do about our health and wellbeing. It’s the only psychological discipline trained to a doctoral level specifically in behaviour change. Health psychologists understand not just individuals, but also the systems, services, and social factors that shape our health and wellbeing choices.
Take Margaret, 68, living alone in a rural part of Scotland. She has early-stage COPD but avoids appointments not because she’s unwilling, but because getting to the clinic is a two-hour round trip and she’s anxious about being a ‘burden’. A health psychologist embedded in her community team might work with her to build confidence, reframe her beliefs about seeking help, and find ways to make small, manageable changes that prevent escalation. It’s not dramatic, but it’s prevention that works.
Or think of Jordan, 15, struggling with low mood and social isolation. He’s missing school, spending hours gaming, and eating poorly. Traditional mental health routes might focus on his symptoms. A health psychologist would look: what’s driving his behaviour? What social supports could be mobilised? How can we scaffold a path toward wellbeing that feels possible to him, not imposed on him?
This isn’t about adding therapy into every setting. It’s about bringing behavioural insight into how services are designed and delivered. It’s about equipping professionals from GPs to link workers, pharmacists to social workers, to have better conversations and create environments where healthy behaviours are more likely.
The Health Psychology Liaison Service saved over £1 million in one year by supporting people with complex needs to stay well at home rather than in hospital or care home settings. NHS Education for Scotland’s MAP Health Behaviour Change programme has reached over 10,000 practitioners to think about those everyday evidence-based behaviour change conversations to support preventative conversations.
If the government and health and social care systems are serious about prevention, it must invest in health psychology. That means growing the workforce, funding training pathways, and embedding health psychologists across the NHS, social care and community settings.
Prevention cannot remain a policy checkbox. Without psychology at its core, it risks becoming just a well-intentioned idea. Health psychology offers the science and the practical tools to make prevention real.
Heather Connolly
Health Psychologist (CPsychol)
Principal Educator – Health Improvement
Psychology Services
NHS Education for Scotland
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