Dry‑Month Nudges Lasting Alcohol Reduction

A coordinated, one‑month abstention campaign (Dry January) produces short‑term physiological gains (improved sleep, lower BP, better liver markers, reduced cancer‑related growth factors) and often leads participants to drink less for months afterwards. Scaling such time‑bounded public campaigns could be a low‑cost public‑health lever to reduce alcohol consumption and downstream disease burden. — If month‑long abstention challenges reliably shift long‑run behavior and biomarkers, public health programs, employers, and regulators should treat them as scalable interventions that alter social norms and market demand for alcohol.