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Rethinking the heritability of aging
Daniela Bakula1, Morten Scheibye-Knudsen1
1Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.
Science (New York, N.Y.)
|January 29, 2026
Summary
Genetic factors significantly influence how long people live, playing a larger role than earlier research suggested. Understanding these genetic determinants is key to unlocking secrets of human longevity.
Area of Science:
- Genetics
- Gerontology
- Human Biology
Background:
- Human longevity is a complex trait influenced by multiple factors.
- Previous research has explored environmental and lifestyle impacts on lifespan.
- The extent of genetic influence on extreme human longevity remains an active area of investigation.
Purpose of the Study:
- To quantify the overall genetic contribution to human longevity.
- To identify specific genetic variants associated with exceptional lifespan.
- To re-evaluate the heritability of longevity in diverse populations.
Main Methods:
- Utilizing large-scale genome-wide association studies (GWAS).
- Employing pedigree analysis and twin studies.
- Applying advanced statistical modeling to estimate genetic heritability.
Main Results:
- A substantial proportion of variation in human lifespan is attributable to genetic factors.
- Identified several novel genetic loci significantly associated with longevity.
- Genetic influence on longevity is robust across different demographic groups.
Conclusions:
- Genetic predisposition plays a more significant role in human longevity than previously estimated.
- These findings highlight the importance of genetic screening for longevity research.
- Further research into identified genes may reveal mechanisms underlying healthy aging.
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