Education and slower biological aging: wealth, social life, mood and smoking as pathways
In a US national sample of adults with a mean age of 70, economic, social, psychological and behavioral pathways together explained up to 47% of the link between educational attainment and slower biological aging, with wealth and social participation the strongest. [1]
Automatic summary · not editorially reviewed
The key findings
The analysis used nationally representative 2016 Venous Blood Study data from the US Health and Retirement Study, with 9,025 participants and a mean age of 70. [1]
Economic, social, psychological and behavioral pathways together explained up to 47% of the educational gradient in biological aging, with wealth (20%) and social participation (13%) the strongest. [1]
Older adults without a high school diploma had 2.7 times the effect magnitude for social participation compared with those with at least a high school diploma, but no effect of wealth or smoking. [1]
The source at a glance
- Study type / format
- Cross-sectional analysis of nationally representative survey and blood data using structural equation modeling.
- Population / context
- 9,025 US adults in the Health and Retirement Study, mean age 70.
- Summary based on
- Study abstract
- Original publication
- September 1, 2026
US adults aged about 70 and a blood-based aging measure
The study used nationally representative data from the 2016 Venous Blood Study of the Health and Retirement Study in the United States: 9,025 people with a mean age of 70. Biological aging was measured with Expanded Biological Age, described as a broad blood chemistry-based indicator of multisystem physiological aging. The authors asked how several adult life pathways at once relate to differences in this accelerated biological aging by education level.
Supporting source [1]
Wealth and social participation explain the largest shares
Using structural equation modeling, the researchers examined economic (wealth), social (social participation), psychological (depression) and behavioral (smoking) pathways. Together these explained up to 47% of the educational gradient in biological aging. Wealth was the strongest pathway at 20%, social participation explained 13%, and depression and smoking each explained 7%. The authors conclude that multiple domains of adult life may underlie the association between higher educational attainment and slower biological aging.
Supporting source [1]
Pathways differed by education level in this sample
The associations depended on education level. Older adults without a high school diploma showed 2.7 times the effect magnitude for social participation compared with those with at least a high school diploma, while no such effect appeared for wealth or smoking. The authors say this points to the importance of considering severe social disadvantage, which may undermine the potential benefits of otherwise important resources for healthy aging. These are associations from one cross-sectional blood study, not proof that education or these pathways cause slower aging.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. The design is cross-sectional, so the pathways are associations, not causal effects, and the findings cannot show that education or these factors cause slower biological aging.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Lisch M, Farina M. · europepmc.org · September 1, 2026