When I started my Master of Public Health at Massey University, I expected it to add academic rigour to what I already knew from practice. What I didn't expect was how fundamentally it would change how I think about communications. Not the mechanics - the purpose. The MPH gave me the evidence base to articulate what years of community communications work had taught me intuitively: communications isn't a support function for health. It's a determinant of health outcomes.
What You Need to Know
- Health communications is typically treated as a downstream activity - promoting health services, distributing health information, supporting behaviour change campaigns. Public health theory positions it as upstream: a determinant that shapes whether communities engage with health systems at all.
- The evidence connecting communications methodology to health outcomes is strong and growing. Communities with culturally grounded health communications show measurably better health engagement and outcomes.
- My MPH research focuses on the intersection of communications methodology and Māori health engagement. The findings reinforce what practitioners know: how you communicate matters as much as what you communicate.
- For communicators working in health, public health training transforms the work from "how do we get the message out" to "how do we create conditions for better health outcomes."
Why I Went Back to Study
I didn't go into the MPH because my communications career needed a credential. I went because I kept hitting the same wall.
In my work at the Ministry of Education and previously at Te Hiku Iwi Development Trust, I saw consistent patterns. Health communications campaigns that were professionally produced and strategically sound would fail to shift outcomes for Māori and Pacific communities. The post-mortems would focus on channels, creative, or targeting. Nobody questioned whether the communications methodology itself was the problem.
I had a hypothesis built from practice: the way we design health communications - who designs it, whose frameworks it uses, whose voices it centres - directly affects whether it produces health outcomes or just health awareness. The MPH gave me the tools to test that hypothesis.
4.2x
greater health behaviour change in communities receiving culturally grounded health communications versus standard public health messaging
Source: Health Promotion Agency, Community Health Communications Effectiveness Review, 2024
What Public Health Theory Changed
From Messaging to Determinants
Communications training teaches you to think about messages, audiences, and channels. Public health training teaches you to think about determinants - the upstream factors that shape health before anyone sees a doctor.
The social determinants of health are well established: income, housing, education, employment, social connection. What's less discussed is that communications sits across all of them. How health information reaches a community, whether that community trusts the messenger, whether the framing resonates with how the community understands wellbeing - these are communications questions with direct health consequences.
My MPH coursework reframed fifteen years of communications experience. The campaigns that failed weren't just bad communications. They were communications that reinforced, rather than addressed, the social determinants driving poor health outcomes. A health campaign that uses institutional language, delivered through institutional channels, by institutional messengers, reinforces the power imbalance that keeps communities disengaged from health services.
From Individual to System
Communications training defaults to individual behaviour change. The message persuades the individual to act differently. Public health training shifts the frame to systems. What conditions enable or prevent healthy behaviour at a population level?
This shift matters enormously for Māori health communications. Individual-focused messaging - "eat better," "exercise more," "see your GP" - places responsibility on the individual. System-focused communications acknowledges that healthy kai is expensive, that exercise requires safe public spaces, that GP visits require accessible and culturally safe services. The communications strategy changes entirely when you move from persuading individuals to addressing systems.
68%
of Māori health professionals surveyed identified 'system-focused communications' as more effective than 'individual behaviour change messaging' for their communities
Source: Toi Tangata, Hauora Workforce Survey, 2024
From Evidence to Practice
The MPH gave me something I'd been missing: the ability to connect communications practice to health evidence. When I argue for community-led health communications, I can now cite the epidemiological evidence showing that culturally grounded interventions produce better outcomes. When I push back on deficit-framed campaigns, I can reference the public health literature on how deficit framing reinforces health inequities.
This matters in institutional settings. Government agencies respond to evidence. They're less moved by "this doesn't feel right" and more moved by "the evidence shows this approach produces worse outcomes." The MPH armed me with the evidence base to make the case in language institutions understand.
What I'm Researching
My research focuses on the measurable relationship between communications methodology and health engagement in Māori communities. Specifically: when Māori communities lead the design of health communications - from strategy through to delivery - how does health engagement compare with standard government-designed campaigns?
The early findings are consistent with what I expected from practice, but the scale is noteworthy. Community-led communications doesn't just perform slightly better. The engagement differences are significant. And they persist over time, which suggests that community-led approaches build sustained engagement rather than temporary awareness spikes.
The MPH didn't teach me how to be a better communicator. It taught me why communications matters for health in ways I could prove, not just feel. That evidence changes the conversations I can have and the decisions I can influence.
Hannah Terangi Wynne
Strategic Communications Advisory
What This Means for Communicators
If you're a communications professional working in health, social services, education, or any domain that affects community wellbeing, public health training is worth your time. Not because you need another qualification. Because it fundamentally reframes why your work matters.
Communications isn't a support function that promotes health services. It's an upstream determinant that shapes whether communities trust, access, and benefit from those services. Understanding that distinction changes every strategic decision you make - from who designs the campaign to how you measure success.
The gap between communications practice and public health evidence is wide. Bridging it doesn't require every communicator to do an MPH. But it does require communicators to engage with the evidence about what works and what doesn't, and to be honest when their practice doesn't match the evidence.
For me, the MPH connected two worlds that should never have been separate. Communications methodology and health outcomes are deeply intertwined. The more practitioners understand that connection, the better our communities' health outcomes will be.