A New View on Aging
Most people expect aging to mean decline — slower thinking, weaker bodies, and an inevitable slide toward dependency. However, a landmark new study from Yale University challenges that assumption entirely. According to the research, getting better with age is not the exception. For nearly half of adults over 65, it is actually quite common.
A study published in the journal Geriatrics, titled Aging Redefined: Cognitive and Physical Improvement with Positive Age Beliefs, found that nearly half of adults aged 65 and above showed measurable improvements in cognitive ability, physical performance, or both over more than a decade. Moreover, those improvements were directly tied to one powerful and often-overlooked factor — mindset.
This finding reshapes how society understands aging. Instead of framing later life purely as a period of loss, experts now say it can also be a time of meaningful growth, recovery, and even peak performance.
What the Yale Study Found
The Data Behind the Discovery
The decade-long study analyzed data from over 11,000 older Americans. It found that nearly 45% of adults aged 65 and older showed measurable improvement in cognitive or physical function over time — with 32% improving cognitively and 28% improving physically, as measured by walking speed.
Walking speed, in particular, is widely regarded by clinicians as a reliable indicator of overall physical health. Cognitive scores, meanwhile, reflect memory, processing ability, and mental sharpness. Together, these two measures paint a detailed picture of how people age — and the results are far more encouraging than expected.
Individual Outcomes vs. Averages
When researchers averaged participants’ scores, they saw an expected decline in ability as people aged. But on the individual level, that picture did not hold up for everyone. This distinction is critical. Population-level averages can mask a wide range of individual experiences — including significant improvement.
The improvements were not limited to people who started out with impairments. Even among participants who had normal cognitive or physical function at baseline, a substantial proportion improved over time. This challenges the common assumption that any gains in later life simply reflect recovery from a previous setback.
Why Mindset Matters More Than We Thought
Positive Age Beliefs Predict Better Health
The study’s most striking finding concerns the role of belief. Individuals with positive beliefs about aging were significantly more likely to experience cognitive and physical gains — and positive age beliefs proved to be a stronger predictor of improvement than age, sex, education, or even baseline health.
The findings build on Levy’s stereotype embodiment theory, which posits that age stereotypes absorbed from culture — through social media, advertisements, and everyday conversation — eventually become self-relevant and biologically consequential. Prior studies by Levy found that negative age beliefs predict poorer memory, slower walking speed, higher cardiovascular risk, and biomarkers associated with Alzheimer’s disease.
The Mind-Body Connection Is Real
Experts say the evidence now confirms what was once dismissed as speculation. Geriatrician Mark Lachs of Weill Cornell Medicine noted that the mind-body connection, once considered unscientific, turns out to be as powerful as many medications — and without any side effects.
Furthermore, because age beliefs are modifiable, this opens the door to interventions at both the individual and societal level, according to lead researcher Becca Levy. In other words, a shift in attitude can directly translate into better health outcomes.
The Stereotype Problem Holding Older Adults Back
Widespread Misconceptions About Aging
Negative stereotypes about aging are deeply embedded in culture — and they carry real consequences. A global survey found that 65% of healthcare workers and 80% of the general population falsely believed that developing dementia is a normal part of aging. These misconceptions influence how people approach their own health as they grow older.
A separate U.S. survey found that 77% of Americans aged 40 and older expect their own cognition to slip. When people accept decline as inevitable, they are less likely to seek care, stay physically active, or adopt habits that support healthy aging.
Research Has Focused on the Wrong Things
Part of the problem, experts say, lies in how aging research itself has been conducted. Much research on older people looks at average outcomes rather than individual outcomes, or examines only decline or the lack of it — rather than the possibility of improvement. As a result, the scientific community has largely underestimated the capacity for growth in later life.
The Yale study directly addresses this gap. By tracking individual trajectories over 12 years, researchers were able to identify patterns that group-level analyses routinely miss.
How to Build a More Positive View of Aging
Mindset Is Not Fixed
One of the most encouraging aspects of this research is that age beliefs are not permanent. If a person’s view of aging is more negative than they would like, they can actively work to change it — for example, by spending more time in intergenerational settings, since exposure to older people helps combat ageism for both younger and older individuals alike.
Additionally, geriatrician Louise Aronson of the University of California at San Francisco offers a practical perspective. While aging is inevitable, it is not a one-way street toward decline. A person may not lift the same weight as they did 40 years ago, but they might lift twice as much as they did a year ago — because they understood that they can influence their aging and had enough positivity to embrace strength training.
Purpose and Meaning Drive Thriving
Beyond mindset, researchers point to another key ingredient. Lachs noted that his patients — who average around 89 years old — share one trait when they are thriving: something in their life that gives them meaning and a sense of purpose. Judgment, wisdom, emotional intelligence, and even happiness also tend to improve with age, he added.
Diana Nyad’s story illustrates this powerfully. At 64 years old, she swam 110 miles from Cuba to Florida — her fifth attempt over 35 years — becoming the first person to do so without a shark cage. She said it was the prime of her life, feeling in better shape physically and mentally than ever before.
What This Means for Healthcare Policy
A Call for Preventive Investment
The Yale study carries important implications beyond individual behavior. The authors hope their findings will encourage policymakers to increase support for preventive care, rehabilitation, and other health-promoting programs for older people that draw on their potential resilience.
Currently, most healthcare systems are structured around managing decline rather than enabling growth. Yet the evidence now suggests that investment in positive aging programs — from cognitive training to community-based physical activity initiatives — can yield measurable returns in health outcomes.
Rethinking What Old Age Looks Like
Ultimately, this research invites a cultural shift. As co-author Martin Slade put it, the message is simply: don’t give up — because life can get better. That message applies equally to individuals, clinicians, and the institutions that serve aging populations.
Lead author Becca Levy noted that the findings suggest a genuine reserve capacity for improvement in later life — and because age beliefs are modifiable, both individual and societal-level change is within reach.
