Cumulative social advantage is associated with slower epigenetic aging and lower systemic inflammation.
Level 3 - non-randomized controlled study
Observational cohort analysis using structural equation modeling
PubMed 40995232 · doi:10.1016/j.bbih.2025.101096
What was done
Using data from 2,117 adults in the Midlife in the United States (MIDUS) study, researchers applied structural equation modeling to examine associations between cumulative social advantage (CSA)—a latent construct spanning familial, religious, emotional, and community social connection—and markers of biological aging. Assessed outcomes included epigenetic aging clocks, systemic inflammation, and neuroendocrine markers (urinary cortisol, cortisone, and catecholamines).
What was found
Higher cumulative social advantage was significantly associated with slower epigenetic aging measured by GrimAge (β = -0.09 to -0.10, q < 0.001) and DunedinPACE (β = -0.12, q = 0.010). Higher CSA was also associated with lower interleukin-6 (IL-6; β = -0.11, q = 0.010). No significant associations were observed for urinary cortisol, cortisone, or catecholamines.
Why it matters
The findings demonstrate that multidimensional social connections are biologically embedded, correlating with reduced systemic inflammation and slower cellular aging.
Limits
The abstract does not report demographic details (e.g., age, sex, race, socioeconomic status) or adjust for potential unmeasured lifestyle and health confounders. As an observational analysis, it cannot establish causal direction.
Cited by
- supports Research by Laura Kubzansky showed that cumulative social advantage and community connectedness significantly reduced GrimAge epigenetic aging.