The cultural story about getting older isn’t a flattering one.
It’s a story about decline, about losing things, about becoming less of whatever you used to be.
And it starts early, in birthday cards that joke about falling apart, in ads that treat wrinkles like a crisis, in the way people talk about their parents as if aging were something that happened to them rather than something they’re doing.
If you’ve absorbed that story, you’re in good company. Most people have.
But two studies, both led by the same researcher at Yale, found something that should change the way you think about thinking about getting older.
The beliefs you carry about aging don’t just reflect how you feel. They track with how you age, physically and mentally, years and even decades down the road.
The gap between people with positive and negative views is measured in years of life and percentage points of dementia risk.
People with positive views live 7.5 years longer
Becca Levy, a professor of psychology and epidemiology at Yale, started with a group of 660 adults aged 50 and older in a small town in Ohio.
They’d been surveyed in 1975 as part of a long-running study on aging and retirement, and one of the things the survey measured was how they felt about getting older.
The questions were simple. Do you agree or disagree: as you get older, you are less useful. Or: things keep getting worse as I get older.
Agreement or disagreement with statements like those got scored into an overall measure of how positively or negatively each person viewed their own aging.
Then Levy waited. She matched those surveys, taken decades earlier, against national death records, and what came back was stark. The people who’d held more positive views about aging lived, on average, 7.5 years longer than the people who’d held more negative ones.
That’s after adjusting for age, gender, income, loneliness, and how healthy they already were at the time of the survey. The beliefs came first. The health outcomes followed.
Think about what that means. A person sitting in their living room in 1975, filling out a survey, checking a box about whether they think getting older means becoming less useful.
That answer, given decades before anything happened to them, predicted how long they’d live. Not perfectly, not individually, but across 660 people, the pattern was clear and large.
Seven and a half years is a big number. It’s bigger than the gap you’d get from exercising regularly or maintaining a healthy weight.
And the beliefs were measured up to 23 years before the deaths occurred, which means this isn’t a case of sick people feeling negative because they’re already sick.
Part of the explanation, Levy found, ran through something she called “will to live.” People who believed aging was manageable and even worthwhile were more likely to take care of themselves, stay engaged, and keep going when things got hard.
The belief wasn’t magic. It was fuel.
The people with positive beliefs developed dementia at nearly half the rate
Levy ran it again with a bigger group and a different outcome.
This time, 4,765 adults from the National Health and Retirement Study, all 60 or older, all dementia-free at the start. She measured their age beliefs at baseline and tracked who developed dementia over the next four years.
Among those with positive beliefs about aging, the dementia rate was 2.6 percent. Among those with negative beliefs, it was 4.6 percent. That’s nearly double the risk for the people who saw aging as a process of losing ground.
And then there was the genetic piece, which is where the finding gets harder to dismiss. About a quarter of the participants carried a gene variant called APOE e4, which is the single strongest known genetic risk factor for Alzheimer’s.
Among those carriers, the ones with positive age beliefs were almost 50 percent less likely to develop dementia than the carriers with negative beliefs. Positive beliefs partly buffered even genetic risk.
The proposed mechanism is stress. Negative beliefs about aging produce a low-grade, ongoing stress response, a background sense that things are getting worse, that you’re losing control, that the future is something to brace against rather than live into.
That kind of chronic stress wears on the brain and the body in measurable ways. Your cortisol stays elevated. Your cardiovascular system works harder than it needs to. Your sleep gets worse.
Positive beliefs, Levy’s team argues, may act as a buffer, reducing that stress load and protecting cognitive function over time.
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What this means for you
The two studies point in the same direction: same researcher, different decades, different outcomes, same pattern. How you think about aging isn’t a side note to your health. It’s part of the machinery.
The good news, and Levy has been clear about this across twenty years of work, is that age beliefs are not fixed. They’re absorbed from the culture around you, which means they can be examined and updated the same way any other inherited assumption can.
This isn’t about pretending aging is easy or pasting on a smile. The research didn’t measure cheerfulness. It measured whether people believed that getting older could include growth, usefulness, and engagement, or whether they believed it was mostly about loss.
The difference between those two stories, told to yourself over years and decades, appears to shape the body and the brain in ways that show up in the data.
The story can be rewritten
A 2026 study from Levy’s lab found that among people 65 and older, those with more positive age beliefs were significantly more likely to show improvement in both cognitive and physical function. Not just slower decline. Improvement.
In practice, updating your beliefs about aging can start with something as plain as noticing which older people you pay attention to. If the only images of aging you absorb are frailty, confusion, and dependence, the story writes itself.
But people in their seventies and eighties who are building things, learning things, staying involved exist in large numbers, and seeking them out changes the internal narrative in a way no affirmation can.
The story you carry about what’s coming isn’t just a feeling. It’s a variable, and unlike your genes, it’s one you can change.
Worth noting plainly: both studies are observational, not experiments. The Ohio sample is 660 people in one town. And optimistic people may take better care of themselves for reasons that have nothing to do with their age beliefs.
The researchers adjusted for health, income, and loneliness, but observational studies can’t prove that the beliefs caused the outcomes, only that they tracked together, consistently, across large groups and long periods of time.
Still, the direction is consistent enough and the size of the effect large enough that the question stops being whether this matters and starts being what you’re going to do about the story you’ve been telling yourself.
