FOXO3 rs7762395: Understanding the Longevity-Linked Variant
The rs7762395 variant is a single-nucleotide polymorphism located within the FOXO3 gene. It has been investigated in various cohort studies for its potential association with exceptional human longevity and reduced mortality risk.
What each genotype means
Baseline longevity profile
This genotype represents the more common allele pair at this location in many populations. Research into FOXO3 variants suggests that individuals without the longevity-associated minor allele may not experience the same potential protective effects against age-related mortality observed in some studies. These findings are statistical associations and do not determine individual health outcomes.
Carried by the majority of individuals in most studied populations, as the minor allele frequency is approximately 0.24 in European ancestry groups.
Potential longevity-associated profile
Carrying one copy of the minor allele may be associated with a modest influence on longevity markers, though evidence is limited and sometimes inconsistent across different ancestries and genders. Some studies have linked this variant to reduced mortality risk, particularly in male cohorts, but these results are not universal. This information is for educational purposes and does not constitute a medical assessment.
This heterozygous genotype is found in a significant portion of the population, consistent with a minor allele frequency of approximately 0.24 in European ancestry groups.
Enhanced longevity-associated profile
This genotype includes two copies of the minor allele, which has been investigated for its potential link to enhanced parental lifespan and reduced mortality risk in certain European and Asian cohort studies. The association is complex, with some research suggesting it may be more pronounced in males or specific populations. These associations are statistical in nature and should not be interpreted as a guarantee of health or longevity.
This homozygous genotype is the least common of the three, occurring at a frequency consistent with a minor allele frequency of approximately 0.24 in European ancestry groups.
What is rs7762395?
A single-nucleotide polymorphism (SNP) is a variation at a single position in a DNA sequence among individuals. The variant rs7762395 is located within the FOXO3 gene, which provides instructions for making a protein that acts as a transcription factor. Transcription factors are proteins that bind to specific regions of DNA to help control the activity of other genes. Because of its role in regulating cellular processes, researchers often study variations in this gene to understand how they might influence biological aging. While rs7762395 is one of many SNPs identified within this locus, it is specifically tracked in genetic databases to determine if it correlates with phenotypic traits, such as the ability to reach an advanced age. It is important to note that a single SNP rarely determines a complex trait like lifespan on its own; rather, it is often studied as part of a broader genetic landscape.
The Role of the FOXO3 Gene
The FOXO3 gene encodes the Forkhead Box O3 protein, which is a member of the forkhead family of transcription factors. This protein is highly conserved across many species, from simple organisms like worms to humans, suggesting it plays a fundamental role in survival. FOXO3 is involved in several critical cellular pathways, including energy metabolism, the response to oxidative stress, and the regulation of apoptosis, or programmed cell death. By managing these processes, the FOXO3 protein helps cells maintain homeostasis and respond to environmental stressors. Because of these functions, the gene is frequently referred to as a 'longevity gene' in scientific literature. Variations in this gene may influence how efficiently these protective pathways operate, which has led scientists to hypothesize that certain genetic configurations might contribute to a more robust physiological state as an individual ages.
Research and Evidence Strength
Research into rs7762395 and other FOXO3 variants has primarily focused on their frequency in centenarian populations compared to younger control groups. Several studies, including those involving German and other European cohorts, have examined whether specific alleles are more common in individuals who reach extreme old age. While some studies have reported statistical associations between FOXO3 variants and longevity, the evidence strength for any single SNP, including rs7762395, remains limited. Scientific findings can be mixed, and some studies suggest that while these variants may be associated with reaching the oldest 1 percentile of survival, they may not significantly modify mortality risk beyond that extreme age. Furthermore, the impact of these variants can be influenced by environmental factors and the presence of other health conditions. Consequently, the scientific community views these associations as preliminary, requiring further large-scale replication to fully understand their biological significance.
Population Frequency
The frequency of the rs7762395 variant varies across different ancestral groups. In European ancestry populations, the minor allele frequency is approximately 0.24. Because genetic architecture differs significantly between global populations, these frequency statistics may not be applicable to individuals of non-European descent. Researchers use these frequency data to ensure that association studies are properly controlled and to understand the distribution of genetic diversity across the human population.
Interpreting Genetic Information
It is essential to understand that genetic variants like rs7762395 are not diagnostic tools. They do not predict an individual's lifespan or guarantee health outcomes. Longevity is a complex trait influenced by a vast array of genetic, environmental, and lifestyle factors, including diet, physical activity, and access to healthcare. Having a specific genotype does not mean an individual will or will not reach a certain age. This information is intended for educational purposes to help the public understand how genomics research is conducted. If you are concerned about your health, family history, or how your genetics might influence your risk for specific conditions, you should consult with a qualified healthcare provider or a genetic counselor. They can provide context based on your personal medical history and help you make informed decisions about your health and wellness.
How common is this variant?
The minor allele frequency for rs7762395 is approximately 0.24 in individuals of European ancestry.
Frequently asked questions
Does having the 'longevity' genotype guarantee I will live to 100?
No. Longevity is a complex trait influenced by many genes, environmental factors, and lifestyle choices. A single genetic variant cannot predict or guarantee an individual's lifespan.
Can I use this information to change my diet or lifestyle?
Genetic information regarding longevity is currently for educational purposes only. You should always consult with a healthcare professional before making significant changes to your diet or lifestyle based on health-related information.
Is rs7762395 the only variant that affects longevity?
No. Longevity is polygenic, meaning it is influenced by many different genetic variants across the entire genome. FOXO3 is just one of many genes that researchers are currently studying.
Where can I find more information about my own genetic data?
If you have taken a direct-to-consumer genetic test, you can often download your raw data. However, interpreting this data requires professional expertise, and you should discuss any findings with a genetic counselor or your doctor.
Sources & further reading
Educational information only, last refreshed 9/28/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Well-characterized non-headline FOXO3 variant associated with healthy aging, lower cardiovascular mortality, and survival beyond age 90.
Non-coding FOXO3 variant identified in longitudinal aging studies as conferring an advantage for survival from midlife into advanced old age.
Common upstream intronic regulatory variant in FOXO3 correlated with human longevity and enhanced resilience against metabolic disease.
Functional non-coding variant in the key longevity regulator FOXO3 contributing to extended survival and healthspan.
An intronic variant in the FOXO3 gene consistently associated with human longevity and survival to extreme old age across multiple ethnic cohorts.
Intronic variant in FOXO3 significantly associated with exceptional longevity and survival to advanced old age, showing allele-dependent enhancer activity.