← Glossary
TraitModerate

Nicotine dependence tendency

Nicotine dependence tendency is a genetic trait Biome reports in its behavioral panel: A well-replicated CHRNA5 variant tied to heavier smoking and nicotine dependence in people who smoke.

Category
Behavioral
Markers
CHRNA5 rs16969968
Strength of evidence
Moderate

Genes

Markers (rsIDs)

How Biome reads this

Biome's at-home DNA test reads this directly from one saliva sample, alongside 650,000+ other markers.

Biome DNA test

This page is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure, or prevent any disease. Genetic results describe tendencies and predispositions, not diagnoses. Always consult a licensed clinician before making decisions about your health, medications, or supplements.