Earliest drug use evidence: Indonesian foragers chewed betel nuts 25,000 years ago

Analysis of two skeletons from Sulawesi, Indonesia, shows tooth wear and traces of a psychoactive substance, suggesting routine betel nut chewing as early as 25,000 years ago. This would be the earliest known evidence of human drug use, though the claim relies on limited skeletal evidence and remains partially corroborated. The finding shifts the timeline of human psychoactive substance use and offers insight into ancient foraging behavior.