The World from the Back Row

Hopping between side events at the World Health Assembly, an empty chair at the back of a packed room beckoned me. I expected a session on noncommunicable disease strategies. I walked away with a geography lesson, a glimpse of national gumption, and the suspicion that what needed a review was the scale of my own imagination.

Barbados’s Minister of Health and Wellness, Senator Lisa Cummins, shared how her island nation contributed little to the forces driving climate change, yet bears a disproportionately high share of their consequences. Rising seas erode its coastline, threaten the tourism infrastructure on which much of its economy depends, and drive saltwater into already scarce freshwater supplies. Extreme heat and deteriorating air quality compound the country’s burden of noncommunicable disease, increasing cardiovascular and respiratory risks. Disruptions to agriculture and food supply make healthy diets less accessible, exacerbating the diabetes burden. As a response, Barbados was developing a debt-for-health swap.

At the risk of oversimplifying, the arrangement would use multilateral guarantees to replace costlier debt with lower-cost financing. The resulting interest savings would be channeled into health infrastructure, care systems and NCD prevention.

I struck up a whispered conversation with the lady next to me. She asked if I knew who their prime minister was.

"To be honest, I don't even know where Barbados is."

"Google her."

I only found out later that seated next to me was Barbados' Chief Nursing Officer, Annastacia Jordan.

Prime Minister Mia Mottley argued for global financing reforms, noting that climate action is inseparable from public health and financial justice. Countries least responsible for the climate crisis, such as Barbados, should not be forced to choose between servicing debt and protecting their people.

Senator Cummins continued to describe other national game changers, including the establishment of Barbados Pharmaceutical Inc. to strengthen domestic medicine production and regional health security. Here was a fellow island nation, substantially smaller than Singapore, demonstrating that a country’s global influence need not be proportional to its geographic size. Had years spent grappling with the granular in healthcare human factors left me unable to imagine change at the scale of the systems I hoped to influence?

But human factors initiatives on our island nation have already begun to travel. The MRI Door Poster, first developed at Changi General Hospital, has informed adaptations in the United States; At one site, its head-to-toe visual logic evolved into a mascot for magnetic resonance safety. A team at Leiden University Medical Center divided neonatal rooms into visually demarcated “island zones,” citing earlier work at KK Women's & Children's Hospital on making invisible infection-control boundaries visible. The Human Factors Analysis and Classification System has been incorporated into Singapore’s national process for reviewing serious patient safety events, bringing a systems framework into oversight across hospitals. These were signs that Singapore's pioneering efforts in healthcare human factors could carry influence far beyond its original setting.

Perhaps it was inevitable that, being here in Geneva, I found myself thinking of the Swiss Army knife. Healthcare had often treated human factors much like one: versatile, multifunctional, reliable, kept in reserve until something needed fixing. The work mattered, and some of its solutions had significant impact. Yet had that very versatility also cramped our ambitions, making us indispensable problem-solvers without inviting us to shape the systems in which those problems arose?

Barbados made the scale of that ambition visible to me. Its innovations did not simply ask healthcare workers to achieve more with less. They altered the financing, production capacity and international partnerships surrounding the health system. In that sense, they reflected an instinct familiar to human factors and systems thinking. Performance improves not when greater demands are placed on people, but when the conditions under which they work are deliberately redesigned to facilitate success.

This points to a more consequential role for human factors. Rather than export universal solutions or prescribe textbook strategies, the field could help create the conditions under which locally appropriate responses emerge, and ensure that their lessons inform institutional decisions, public policy and learning across health systems. The aim is not to reproduce the same intervention everywhere, but to carry its underlying insight into new settings where it can be questioned, adapted and made useful again.

From the movie Inception.

Policy may be written far from the frontline, but frontline is where policy becomes real. Care professionals translate broad rules into daily decisions under conditions of limited time, information and resources. Funding choices determine which services exist, which needs are prioritized and which must wait. Regulatory requirements become compliance tasks and information burdens. Human factors can help anticipate these consequences while policies are still taking shape, asking what is essential for success, who must carry it, and where people will have to exercise discretion or compensate for system limitations.

Moving human factors from the repair kit into the blueprint would require more than aspiration. It would mean giving professional expertise a place in policy development, systems planning, and regulation design, all before choices harden into constraints. It would mean building human factors capability within healthcare ministries and agencies, and creating channels through which knowledge from everyday work can reach national decision-makers. Human factors need not be summoned only after an interface confuses someone or an incident causes harm. It should help countries design workable and resilient health systems from the outset.

With any luck, I will find myself at the next World Health Assembly, perhaps once again in the back row. Human factors, however, belongs closer to the tables where health systems are shaped.