Study Links 66,000 People’s Data to Faster Aging Under Poverty and Racial Marginalization
Updated
Updated · ScienceAlert · Jun 21
Study Links 66,000 People’s Data to Faster Aging Under Poverty and Racial Marginalization
2 articles · Updated · ScienceAlert · Jun 21
Summary
Nearly 66,000 people across 23 countries were analyzed in a new meta-study that found lower socioeconomic status was consistently tied to faster biological aging, with possible similar effects from racial and ethnic marginalization.
Three generations of epigenetic clocks were tested, and the newest third-generation models detected those disparities most clearly because they measure pace of aging rather than just chronological age.
Children from poorer backgrounds also showed signs of faster aging, though the authors cautioned pediatric clock estimates may blur aging with normal development because the tools were trained in adults.
US cohort analyses found White participants aged more slowly than Black and Latinx participants, with the widest gap between Black and White groups, although the researchers warned race results were heterogeneous and vulnerable to publication bias.
The findings suggest newer epigenetic clocks could become tools for tracking how inequality affects health and for testing which interventions most effectively narrow those gaps.
New clocks measure our aging pace, but are they reliable for personal health or just scientific curiosities?
As science decodes our 'biological age,' how can we prevent it from becoming a new tool for social discrimination?
If poverty physically accelerates aging, can targeted interventions actually reverse the biological damage?
Epigenetic Clocks Reveal How Social Disadvantage Accelerates Biological Aging: Landmark Meta-Analysis of 66,000 People
Overview
A major meta-analysis published in 2026 combined data from 140 studies and nearly 66,000 people, revealing clear evidence that social disadvantage—such as low socioeconomic status and racial marginalization—directly leads to faster biological aging. This effect starts early in life, with children from disadvantaged backgrounds already showing signs of accelerated aging, and continues into adulthood, especially for those who faced adversity as children. The findings highlight that systemic inequalities have deep and lasting health impacts, making it urgent to address social factors to promote healthier, longer lives for everyone.