This Ancient Smile Hid a Psychoactive Secret for 4,000 Years In a groundbreaking discovery, scientists have found chemical traces of betel nut chewing in 4,000-year-old teeth from a Bronze Age burial in Thailand — the earliest direct evidence of psychoactive...

This Ancient Smile Hid a Psychoactive Secret for 4,000 Years #Science #Biology #Botany #AncientPlants #PsychoactiveSecrets #Archaeobotany