Myths vs facts: ADH1B and stress

ADH1B encodes alcohol dehydrogenase 1B, an enzyme in alcohol metabolism. A common myth is that ADH1B variants directly reduce stress or anxiety. In reality, the fast-metabolizing variant (ADH1B*2) causes rapid acetaldehyde accumulation, leading to flushing and nausea, which may reduce alcohol intake but does not lower stress per se. Studies show no direct causal link between ADH1B and stress hormones or anxiety disorders. The evidence is mechanistic and observational, not from clinical trials. Caveat: effects are ancestry-specific and not actionable for stress management.