By Adetutu Audu

Chronic diseases have become one of the defining challenges of our time, not with a sudden crisis, but with a slow, steady erosion of health, productivity, and opportunity. Conditions such as diabetes, cardiovascular disease, cancer, and other non-communicable diseases shape how long people live and how well they live. They affect families, workplaces, and national economies, often long before patients are admitted to hospitals.

Despite decades of clinical advances, our progress has been uneven. Costs continue to rise, care remains fragmented, and underserved communities bear the heaviest burden. The uncomfortable truth is that we have been trying to solve a systems problem with isolated solutions.

To reverse this tide, a new paradigm of systems thinking is required, one that posits chronic diseases cannot be defeated in the doctor’s office alone. Instead, they require a holistic view that encompasses prevention, early detection, lifestyle management, and long-term surveillance.

We interviewed Dr. Ifeyinwa Ijeh, an experienced public health physician, to examine the importance of addressing underlying causes rather than managing symptoms, and to consider strategies for developing improved systems for symptom management.

Why do you believe we need to move toward a systems-thinking paradigm to truly address chronic diseases?

Chronic diseases do not develop in isolation, yet we often approach them as if they do. For years, we have focused on treating symptoms and managing complications, while overlooking the environments that make people sick and keep them sick. Biology matters, of course, but so do housing, nutrition, work conditions, income, and how easy or difficult it is to stay engaged with care.

Systems thinking forces us to zoom out and ask harder questions. Why do certain communities experience higher disease burden? Where do people fall out of care? Which parts of the system support health, and which quietly undermine it? When we see these connections, we can design care models that support prevention, consistency, and long-term control rather than constant crisis response.

“You cannot prescribe your way out of a problem that is rooted in everyday life.”

You champion a decentralized model of care. Why is it important to move responsibility away from just the specialist, like the endocrinologist, and towards a broader team?

A condition like diabetes does not wait for a quarterly appointment. An endocrinologist might see a patient for fifteen minutes every few months, but diabetes is managed every day, in kitchens, workplaces, grocery stores, and bedrooms. Those in-between moments are where outcomes are truly shaped.

Decentralized care reflects real life. It brings primary care providers, community health workers, educators, and patients into a shared, coordinated system. Community-based teams often identify challenges that never surface in clinical visits, whether that is food insecurity, transportation barriers, or difficulty affording medications. When those insights inform care, support becomes more practical and timelier. Specialists remain essential for complex cases, but sustainable disease management depends on a broader team working in sync.

        “The most important care happens between appointments, not during them.”

In your work, you’ve mentioned the need to integrate social determinants of health into patient care. How do we practically achieve this integration in a healthcare system that is often rigid and siloed?

Dr. Ijeh: It starts with accepting that health does not happen in a vacuum. If we only track lab values and vital signs, we are missing the context that determines whether those numbers improve or worsen. Social factors such as food access, housing stability, and social support are not side notes. They are core drivers of health outcomes.

The key is making this integration seamless and actionable. If a patient is identified as pre diabetic and lives in a food desert, the system should automatically connect them to nutritional support or community resources. That connection should feel like part of care, not an extra burden. When clinical care is paired with practical, real-world support, patients are far more likely to succeed.

“Data should not just describe people’s problems. It should activate solutions.”

How do you persuade financially focused decision makers to invest in prevention and social interventions?

You have to speak the language of risk and return. Prevention is often dismissed as soft or intangible, but its financial impact is very real. When you show that investing in nutrition reduces hospital admissions or long-term complications in people with diabetes, for example, the conversation changes. Prevention stops being framed as charity and starts being understood as a smart investment.

Chronic diseases are most expensive when they reach crisis points. Heart attacks, strokes, amputations, and emergency hospitalizations drive enormous costs. By investing earlier in prevention and sustained management, we reduce the likelihood of these catastrophic events. The challenge is to align timelines. Finance often looks at quarters, while public health looks at years or generations. Part of my work is helping leaders see that the most responsible financial decisions are often the ones that take patience.

“The cheapest care is the care that prevents crisis before it happens.”

Looking ahead, what is your vision for the future of public health?

I believe we are at a pivotal moment. We have the data, the tools, and the evidence to significantly reduce health disparities, yet we often fall short in effectively putting them into practice . Too often, research and practice operate in parallel rather than in partnership.

My vision is for a learning health system, one where every patient interaction strengthens the system as a whole. Data generated through care should inform better policies, smarter programs, and more equitable delivery models in real time. When systems learn continuously and respond intentionally, we move from managing disease to preventing it. That is the future of public health I am working toward.

“The goal is not just longer lives, but healthier ones supported by systems that learn and adapt.”