In addition to increased alcohol consumption, the ADH1B‐rs1229984 GG genotype is associated with slower ethanol oxidation such that ethanol remains in the blood and saliva for longer, which may result in prolonged exposure to salivary acetaldehyde due to oral microbial acetaldehyde production from ethanol and consequently increased risks of UADT cancers.54, 55. The gene discussed is ADH1B; the disease is cancer.