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Neighborhood deprivation associated with accelerated epigenetic aging in cross-sectional studyPoor neighborhoods may accelerate biological aging

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Key Takeaway
Note the observed association between neighborhood deprivation and accelerated epigenetic aging via GrimAge and PCGrimAge.

This cross-sectional study investigated the associations between neighborhood deprivation, as measured by the Area Deprivation Index (ADI), and epigenetic age acceleration using four second-generation epigenetic clocks. The study included a community-based sample of 370 healthy adults aged 18 to 50 years from the greater New Haven, CT area, without major psychiatric, medical, or cognitive disorders.

Researchers found that greater neighborhood deprivation was associated with accelerated epigenetic aging across several metrics, specifically GrimAge ({beta}=0.037, p<.001), PCGrimAge ({beta}=0.019, p<.001), and PCPhenoAge ({beta}=0.041, p<.001). No association was found between neighborhood deprivation and PhenoAge (p=.23). Additionally, higher deprivation was associated with greater lifetime adversity ({beta}=0.112, p<.001) and lower educational attainment ({beta}=-0.019, p=.012).

Mediation analyses indicated that lifetime adversity partially mediated the relationship between ADI and accelerated GrimAge (20.3% of total effect) and PCGrimAge (23.3% of total effect). The study also noted racial disparities in these associations; a stronger relationship between neighborhood deprivation and accelerated GrimAge ({beta}=0.061, p=.004) and PCPhenoAge ({beta}=0.057, p=.02) was observed among Black participants compared to White participants.

Because this is a cross-sectional study, these findings represent associations and mediation rather than causal relationships. The results suggest that neighborhood environments and cumulative stress may contribute to biological aging and racial disparities in aging trajectories.

Where you live might do more than just shape your surroundings—it could actually change how your body ages. A study of 370 healthy adults in the New Haven, Connecticut area found that living in neighborhoods with higher levels of deprivation is linked to accelerated biological aging.

Researchers used epigenetic clocks—special tools that look at DNA markers to estimate biological age—to see how environment impacts the body. They found that people in more disadvantaged neighborhoods showed signs of faster aging. This connection was also tied to higher levels of lifetime adversity and lower levels of educational attainment.

The study also highlighted how these challenges affect different people. For example, the link between neighborhood deprivation and certain aging markers was stronger among Black participants compared to White participants. This suggests that environmental stress and cumulative hardship might contribute to racial disparities in how we age.

It is important to remember that this study looked at associations, not direct cause and effect. While the data shows a clear link between neighborhood hardship and biological aging, more research is needed to understand exactly how these environmental factors drive these changes.

What this means for you:
Living in disadvantaged neighborhoods is linked to faster biological aging and more lifetime adversity.

Study Details

Sample sizen = 370
EvidenceLevel 5
PublishedApr 2026
View Original Abstract ↓
Importance: Adverse neighborhood conditions can lead to poorer health outcomes, potentially through accelerated biological aging. However, whether these relationships are explained by individual- or neighborhood-level factors remains unclear. Objective: To examine the association between neighborhood deprivation, measured by the Area Deprivation Index (ADI), and epigenetic age acceleration and assess whether individual- and neighborhood-level characteristics mediate or modify these associations. Design: Cross-sectional study using data from a Yale Stress Center study between 2008 and 2012. Data analysis was conducted from July 2025 to January 2026. Setting: Community-based sample from the greater New Haven, CT area. Participants: A total of 370 healthy adults aged 18 to 50 years without major psychiatric, medical, or cognitive disorders who provided blood samples for DNA methylation analysis. Main Outcomes and Measures: Epigenetic age acceleration measured from DNA methylation using four second-generation epigenetic clocks, with associations assessed among aging, neighborhood deprivation, and individual- and neighborhood-level factors. Results: Data were analyzed from 370 participants (212 women [57.3%], 158 men [42.7%]; mean [SEM] age, 29.3 [0.46] years). Greater neighborhood deprivation was associated with greater lifetime adversity ({beta}=0.112, p<.001) and lower educational attainment ({beta}=-0.019, p=.012), and accelerated epigenetic aging as measured by GrimAge ({beta}=0.037, p<.001), PCGrimAge ({beta}=0.019, p<.001), and PCPhenoAge ({beta}=0.041, p<.001), but not PhenoAge (p=.23). In multivariable models accounting for individual factors, neighborhood deprivation remained associated with these three clocks. Lifetime adversity partially mediated the association between ADI and accelerated GrimAge (20.3% of total effect) and PCGrimAge (23.3%). Race moderated the direct association between ADI and epigenetic aging, with stronger associations between neighborhood deprivation and accelerated GrimAge ({beta}=0.061, p=.004) and PCPhenoAge ({beta}=0.057, p=.02) observed among Black participants compared to White. Conclusions: Greater neighborhood deprivation was associated with accelerated epigenetic aging across multiple second-generation clocks, with lifetime adversity partially mediating these associations. Stronger effects were observed among Black participants. These findings suggest that neighborhood environments and cumulative stress may contribute to biological aging and racial disparities in aging trajectories.
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