Sulawesi Teeth Show Betel Nut Use 25,000 Years Ago
Indonesia

Tarmizy Harva/Reuters
What Happened
Key Implications
What Happened
Key Implications
Where Sources Agree
- arrows_inputEarliest Evidence of Drug Use: Some sources suggest that humans utilized psychoactive substances as early as 25,000 years ago, with skeletal evidence from Sulawesi indicating habitual betel nut sucking, according to a study published in Science Advances.
- arrows_inputAddictive Cycle Confirmed: Several outlets confirm that ancient foragers were trapped in an addictive cycle where they repeatedly sucked betel nuts to relieve dental pain, which only caused further severe tooth damage, according to Griffith University researchers.
Where Sources Disagree
- arrows_outputBetel Nut Effects Disputed: Some reports characterize the ancient practice of sucking betel nuts as early evidence of psychoactive drug use, emphasizing its mind-altering properties. Conversely, other sources focus on the practice as a medicinal habit, highlighting the nut's numbing effects for pain relief rather than a recreational "high."
- arrows_outputEarliest Drug Use Evidence: Researchers identify the Sulawesi findings as the earliest evidence of habitual drug use, dating back 25,000 years. In contrast, other experts point to evidence that earlier hominids, such as Neanderthals, utilized plants for medicinal relief, suggesting such practices may have existed long before this period.
Timeline
September 9, 2026
Study published, pushes back timeline: The Science Advances paper (published in early September 2026) argues betel nut sucking emerged up to 25,000 years ago—pushing back the earliest-known habitual drug use by millennia and predating previous ~13,000-year-old evidence of psychoactive substance use.
September 9, 2026
Chemical and lab tests confirm arecoline: Biomolecular analyses detected traces of arecoline in the ancient dental tissue, and laboratory experiments soaking betel nuts in artificial saliva and testing extracts on engineered frog egg cells showed sucking can release the psychoactive alkaloid arecoline.
2017
Remains excavated in 2017: Brumm’s team unearthed the fossilized partial skeletons in Leang Bulu Bettue, a limestone cave in South Sulawesi, during 2017 excavations; the remains preserved teeth with unusual wear for later study.
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Timeline
September 9, 2026
Study published, pushes back timeline: The Science Advances paper (published in early September 2026) argues betel nut sucking emerged up to 25,000 years ago—pushing back the earliest-known habitual drug use by millennia and predating previous ~13,000-year-old evidence of psychoactive substance use.
September 9, 2026
Chemical and lab tests confirm arecoline: Biomolecular analyses detected traces of arecoline in the ancient dental tissue, and laboratory experiments soaking betel nuts in artificial saliva and testing extracts on engineered frog egg cells showed sucking can release the psychoactive alkaloid arecoline.
2017
Remains excavated in 2017: Brumm’s team unearthed the fossilized partial skeletons in Leang Bulu Bettue, a limestone cave in South Sulawesi, during 2017 excavations; the remains preserved teeth with unusual wear for later study.













