Researchers at NYU School of Global Public Health announced on Apr. 7 that neighborhood conditions may influence aging at the cellular level, according to a new study published in Social Science and Medicine. The research found that people living in neighborhoods with fewer social and economic opportunities are more likely to show biological signs of accelerated aging.
This topic is important because it suggests that where a person lives can affect their long-term health beyond individual lifestyle choices. The findings highlight the role of structural factors such as jobs, housing stability, and community resources in shaping health outcomes.
The study analyzed data from 1,215 American adults who participated in the Midlife in the United States (MIDUS) study. Blood samples were used to measure four molecular markers of cellular aging, including CDKN2A RNA abundance—a key indicator linked to cell division halting and inflammation associated with age-related diseases. Researchers also evaluated neighborhood opportunity using the Childhood Opportunity Index 3, which includes measures related to education quality, environmental factors like air and water quality, walkability, insurance coverage, employment rates, homeownership levels, and income.
"Our health is shaped not only by individual behaviors, but also by the environments we live in," said Mariana Rodrigues, a PhD student at NYU School of Global Public Health and first author of the study. "This study suggests that structural conditions may become biologically embedded and influence aging processes over time." The results showed that individuals residing in low-opportunity neighborhoods had significantly higher levels of CDKN2A RNA even after accounting for other socioeconomic or lifestyle variables. The strongest link was found between lower social and economic opportunity within neighborhoods—rather than educational or environmental deficits—and increased expression of this marker.
Adolfo Cuevas, associate professor at NYU School of Global Public Health and senior author on the paper said: "Stressors related to income, jobs, and housing are not occasional but persistent conditions that shape daily life. Our findings suggest that chronic stress caused by economic deprivation and limited mobility may be the primary driver of cellular aging." Rodrigues added: "Improving neighborhood conditions, particularly social and economic resources, may be important for promoting healthy aging and reducing health disparities...if we really want to address health disparities...it's important to consider what needs to be changed at the structural level."
The researchers plan further studies focusing on community-related factors that could help protect against these risks over time. They note many environmental influences on health are societal issues rather than problems individuals can solve alone.
