Research confirms wealth gap accelerates aging in lower-income populations

A person born into poverty does not simply experience life differently than someone born wealthy. According to new research, they experience time itself differently—their bodies aging faster, their physical capacities declining sooner, their independence eroding at an accelerated pace. Doctors at Geneva University Hospitals and the University of British Columbia analyzed health data from nearly 32,000 people between 50 and 85 years old across the United Kingdom and Canada, and what they found was stark: the poorest 60-year-old in England walks with the speed of the wealthiest 75-year-old.

The research team measured what might seem like small things—how fast someone walks, how firmly they can grip, how well their lungs function, whether they can dress themselves without help, whether they can bathe without assistance. These are not abstract measures of health. They are the difference between independence and dependence, between managing your own life and needing someone else to manage it for you. The data showed that people with lower incomes experienced steeper declines in all of these measures as they aged. They lost muscle strength faster. They slowed down sooner. They struggled more with the everyday tasks that allow a person to live without constant help.

What makes this finding significant is not that it stands alone. Researchers have been documenting the link between wealth and health for years. A 2020 study from University College London found that signs of aging appeared much earlier in poorer populations—gait speed nearly 40 percent slower among lower earners, memory decline 10 percent steeper. But the new work adds something the field had lacked: a direct comparison across countries and between men and women, revealing that the relationship between money and aging is not uniform. It hits different people differently.

Stephanie Schrempft, one of the researchers at Geneva University Hospitals, noted that low income and socioeconomic status affect the sexes in distinct ways. The least wealthy women struggled more with mobility and daily activities, yet their lung function held up better than that of the least wealthy men. The least wealthy men, by contrast, experienced sharper declines in lung capacity. The pattern is not simple. The mechanism is not one-size-fits-all.

The researchers were careful to note what their data could and could not show. The analysis did not include information about childhood—the years when health trajectories are often set—or access to private healthcare, factors that might explain some of the gap. But when the team accounted for the things they could measure—lifestyle choices, body weight, chronic diseases, social connections—the link between income and physical decline remained. It held steady. It persisted even after controlling for behaviors and conditions that people might theoretically change. The wealth gap, the data suggested, was doing something to the body that went beyond the obvious suspects.

This is not a story about individual choices or personal responsibility. It is a story about time and bodies and what happens when one group of people has fewer resources than another. It is a story that will likely continue to unfold as researchers dig deeper into why the relationship between money and aging differs by gender, by country, by the specific measures of physical function we choose to examine. For now, the finding stands: in the race against time, some people start further behind.