Wernicke–Korsakoff syndrome (WKS) is a neurological disorder characterized by symptoms of confusion, double vision, loss of muscle coordination, hallucinations, and exaggerated storytelling, among many others. Alcohol use disorder is the top cause of WKS due to the way heavy alcohol use depletes thiamine or vitamin B1. An estimated 80% of people diagnosed with alcohol use disorder are deficient in thiamine, which greatly increases their risk of WKS. When left untreated, WKS may lead to irreversible brain damage and death.