Research

Hormonal

Homozygosity for the minor G allele of the FOXO3A gene (rs2802292) is strongly associated with increased human longevity, conferring approximately twice the protective effect (OR 2.75) compared to the major TT allele.

You cannot change your FOXO3A genotype, but this research highlights that the genetic variants associated with longevity are also linked to better insulin sensitivity and lower risk of chronic diseases like heart disease and cancer. Focus on maintaining high insulin sensitivity through diet and exercise, as this may mimic the metabolic profile associated with the 'longevity genotype' (lower fasting insulin, lower HOMA-IR).

GoodSupportsHIGH confidence
The OR for homozygous minor vs. homozygous major alleles between the cases and controls was 2.75 (P < 0.00009; adjusted P < 0.00135).
Bradley J. Willcox et al. · Proceedings of the National Academy of Sciences · 2008

Why this rating

Large, homogeneous population, nested case-control design, strong statistical significance, but observational nature limits causal inference.

Source

FOXO3A genotype is strongly associated with human longevity

Bradley J. Willcox et al. · Proceedings of the National Academy of Sciences · 2008

DOI 10.1073/pnas.0801030105

case_control · n=615Cited 980×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →