Skip to content
Journal ArticleGeroScience·Jul 2026

Your Longevity Genes Help a Little, But Not Smoking Helps a Lot More

Key Insight

This study suggests lifestyle habits like not smoking matter more for lifespan than longevity genes.


Researchers checked whether a genetic score for long life actually predicts who lives longer. It did, but the effect was modest. Smoking heavily was a far stronger predictor of early death than genes. This is a good reminder that your daily habits can outweigh the hand you were dealt.

Conflict of Interest Disclosure: The authors declare no competing interests.

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.