Revealing Ancient Drug Use on Sulawesi Island
A groundbreaking study published on September 9, 2023, has uncovered the earliest known regular consumption of psychoactive substances, traced back to Sulawesi Island in Indonesia. Archaeologists identified that Ice Age hunter-gatherers regularly chewed betel nuts (Areca catechu), which contain the neuroactive compound arecoline. This conclusion comes from examining distinctive grooves on the teeth of two prehistoric individuals who lived between 25,000 and 6,300 years ago. This represents the oldest documented example of plant-based substance dependence, shedding light on early human interaction with mind-altering plants.
Insights from the Research
The study revealed that the first individual, whose teeth were analyzed, lived between 25,000 and 16,000 years ago and died between the ages of 40 and 50. The second man lived roughly 7,600 to 6,300 years ago and was of a similar age at death. Deep grooves found on their teeth indicate habitual betel nut chewing, likely used to relieve tooth pain. As researcher Adam Brumm explains:
“The more they chewed to alleviate dental discomfort, the more severe their tooth damage became.”
Arecoline, the active stimulant in betel nuts, produces stronger effects when combined with slaked lime (calcium hydroxide). Early chewing methods mainly caused mouth numbness rather than stimulation. These findings suggest that betel nut use predates the Neolithic era and was practiced not only on Sulawesi but also in the Fertile Crescent, where agriculture began about 12,500 years ago.
The study also places these results in a broader archaeological context, comparing them with other evidence of ancient psychoactive substance use worldwide:
- In 2017, researchers found that Neanderthals used poplar bark for its pain-relieving properties.
- In Peru, traces of pollen from a psychedelic cactus dating back 10,000 years were discovered.
- In Israel, residues of fermented beer around 13,000 years old have been uncovered.
- In 2023, hair analysis from 3,000-year-old remains in Es Càrritx cave, Menorca (Spain), revealed traces of psychoactive substances.
Exploring these ancient uses of mind-altering plants enhances our understanding of early human culture and medical practices. Such research highlights the crucial role archaeological discoveries play in unraveling humanity’s long-standing relationships with nature.
This discovery not only broadens our perspective on prehistoric drug use but also emphasizes the significance of investigating how ancient peoples engaged with the plant world. Gaining insight into why and how our ancestors consumed psychoactive substances can inform modern scholars about the evolution of human culture and medicine. Moreover, it may contribute valuable context to ongoing debates surrounding drug use and its place in contemporary society.