I can still picture the poster in my grandmother’s kitchen in Kerala. It was a government guide on managing diabetes, printed in crisp English, with a glossy photo of a fair-skinned family eating something that looked like pasta and broccoli. My grandmother spoke only Malayalam and had never laid eyes on a head of broccoli in her life. She’d glance at it, shake her head, and go back to stirring her kanji. The information on that poster was technically accurate. It was also, for her, completely useless.
That poster is a faded snapshot of something much bigger that plagues public health: the habit of designing messages as though the audience is one tidy, uniform block. We write one pamphlet, shoot one video, launch one campaign, and cross our fingers that it lands just as well with a teenager in Mumbai, a farmer in Punjab, and a retired teacher in Kochi. It doesn’t. And when it misses, we don’t just burn resources—we widen the very health gaps we say we want to close.
The Myth of the Average Patient
Public health has a quiet, stubborn infatuation with the “average” person. We calculate population-level risks, set population-level targets, and craft messages that aim for a statistical midpoint. The trouble is, no actual human being lives at that midpoint. A 2019 analysis in The Lancet noted that even within a single city, life expectancy can swing by 20 years between neighborhoods just a few kilometers apart. A message tuned for the city’s average is going to miss both ends of that spectrum entirely.
Take the classic refrain to “eat five servings of fruits and vegetables a day.” For a family in a food desert where the corner shop sells mainly packaged snacks, that advice lands as guilt, not guidance. For a household where the grandmother runs the kitchen and believes cooked vegetables are gentler on the stomach, the message completely ignores who actually makes the decisions. The science behind five-a-day is solid. The delivery assumes a level of agency, access, and cultural alignment that just isn’t there for a lot of people.
This isn’t some edge-case worry. During the early months of COVID-19, handwashing posters popped up everywhere. But in neighborhoods where the water supply was patchy, soap was a small luxury, or three generations shared one tap, that message felt less like help and more like a scolding from a distant authority. People aren’t irrational when they shrug off public health advice. They’re responding to the realities of their own lives—realities the message never bothered to get curious about.
When One-Size Messaging Backfires
Uniform health messaging doesn’t just flop—it can do active damage. I saw this up close while working on maternal nutrition in rural Karnataka. The standard government flipchart told pregnant women to eat more leafy greens, dairy, and eggs. But in the villages I visited, eggs were often avoided during pregnancy because of local beliefs about “heat” in the body, and dairy was pricey. The health workers, drilled on the same generic script, would recite the advice mechanically. Women nodded politely and went home to eat what they always ate.
Even worse, some women turned the failure inward. “I must be a bad mother,” one young woman told me, “because I cannot give my baby what the sister says.” The message, built with decent intentions, had curdled into shame. And shame doesn’t spark behavior change—it just makes people go quiet.
Then there’s what researchers call reactance. When people sense that a message is trying to push them around or doesn’t give a damn about their circumstances, they might reject the whole thing outright—even if the core advice is sound. A 2020 study in Health Communication found that smokers who felt judged by anti-smoking campaigns were less likely to try quitting than those who saw messages that acknowledged how hard quitting actually is. A little humility in the framing made the science easier to swallow.
The Evidence for Tailoring
Here’s the brighter part: decades of research show that tailored health communication works better—often a lot better—than the generic stuff. A meta-analysis in the Journal of Health Communication combed through more than 50 studies and found that messages customized to a person’s culture, language, readiness to change, and specific roadblocks were significantly better at nudging behaviors like cancer screening, sticking with medications, and shifting dietary patterns.
Tailoring isn’t the same as personalization. We don’t need a separate pamphlet for every single person walking the earth. But we do need to segment audiences with some care. Age, gender, literacy level, language, local foodways, religious practice, and trust in institutions all shape how a message is received. In my own work, I’ve picked up the habit of asking three questions before I share any health information: Who is this for, specifically? What in their daily life might make this advice a headache to follow? And who do they actually listen to?
That last question matters more than most people think. In plenty of communities, the most trusted source of health information isn’t a doctor or a government leaflet—it’s a mother-in-law, a religious leader, or the woman who runs the neighborhood tea stall. If we’re not working with those influencers, we’re basically broadcasting into a void.
Designing Messages That Meet People Where They Are
So what does better public health messaging look like on the ground? It starts with listening before talking. When I helped design a diabetes education program for Malayali seniors in my father’s neighborhood, we didn’t kick things off with a lecture on glycemic index. We started by asking the seniors what they already ate, what they liked cooking, and what scared them about diabetes. Only then did we float swaps that made sense in their kitchens: red rice for white, a smaller portion of tapioca, a little extra bitter gourd in their thoran.
Good tailoring also means taking emotional context seriously. A campaign that chirps “just walk 30 minutes a day” ignores the woman who doesn’t feel safe walking alone where she lives, or the laborer whose body is already worn out from physical work, or the new mother who can’t carve out 30 unbroken minutes for herself. We have to offer a few different pathways to the same goal and name the real constraints people live with.
Language matters enormously—and I don’t just mean translation. I mean the idioms, metaphors, and examples we reach for. When I talk about blood pressure with my older Tamil patients, I sometimes compare arteries to a garden hose under too much water pressure. It’s a visual they get because many have spent time tending plants. It’s a small thing, but small things stack up into trust.
Systems, Not Just Slogans
Of course, messaging by itself can’t patch up structural holes. Telling someone to eat healthier is hollow if their neighborhood has no grocery store. Telling someone to see a doctor rings empty if they can’t afford the visit or can’t skip work. Public health communication has to walk alongside policies that make the healthy choice the easy choice. But even inside those constraints, smarter messaging can lower barriers and build a sense of agency.
I think often of a project in Brazil that used community health workers to deliver family-specific dietary advice based on the foods actually sold in local markets. The messages carried photos of recognizable ingredients and included recipes from the region. Compared to a control group that got the standard national guidelines, the tailored group showed noticeably bigger improvements in fruit and vegetable intake. The difference wasn’t in the science—it was in the translation of science into lived, messy reality.
We’re not short on evidence about what to eat, how to move, or why to vaccinate. What we’re short on is the patience and humility to shape that evidence into forms that fit the beautiful, unruly diversity of human lives. Every time we treat people as interchangeable units, we lose someone. And often, the people we lose are the ones already carrying the heaviest burdens of disease.
Frequently Asked Questions
Why hasn’t tailored health messaging been picked up more widely?
Cost and complexity are the usual explanations. Designing multiple versions of a campaign takes more time and money than producing a single one. But the hidden cost of failed campaigns—squandered resources, corroded trust, and stubborn health gaps—is a lot higher. Technology now makes it easier to segment audiences and test messages quickly, but the real bottleneck is often institutional inertia. Many health agencies are set up to churn out uniform outputs, and shifting that culture asks for leadership that values real impact over tidy output.
Isn’t there a risk of stereotyping when we tailor messages to specific groups?
That’s a fair worry. Tailoring should lean on careful local research, not lazy assumptions. The goal isn’t to say, “All people from X community think Y,” but to spot common patterns in barriers, preferences, and communication channels. Good tailoring stays bendable enough to leave room for individuality. The best route is to co-create messages with the intended audience, letting them guide the tone, imagery, and examples.
What can I do as an individual to make health information land better for my family or community?
Start by being a bridge, not a broadcaster. When you share health advice, take a beat to think about the specific person you’re talking to. What does their daily routine look like? What do they already believe? What’s one small, doable change they could try? Use their language, their food, their metaphors. And listen more than you talk—often, the most valuable information is what the other person already knows but hasn’t been asked about.
The next time you spot a public health poster, ask yourself: who is this actually for? If the answer is “everyone,” it might be for no one at all.
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