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According to Science, this implies that a paste was deliberately applied, rather than the staining being a byproduct of chewing betel nuts for a euphoric high.—Maria Mocerino, Interesting Engineering, 14 Feb. 2026 Even the freedom to bring in snacks and drinks—other than betel nuts, a stimulant—could be rescinded if staff underperformed.—Andy Greenberg, Wired News, 27 Jan. 2026 As each night progressed, ashtrays piled up and bags of betel nuts emptied; every once in a while, Bi’s assistant passed him a glass of milk for nutrition.—Dennis Zhou, New Yorker, 12 Dec. 2025 Traces of arecoline, a stimulant exclusively found in betel nuts, were present in all the reference samples and in three archaeological samples that came from the unstained teeth of a woman.—Elizabeth Rayne, ArsTechnica, 19 Aug. 2025 These men were sitting quite still in the late-afternoon heat, catching a break next to a stall that sells paan, a mixture of ground betel nut and flavorings.—Diaa Hadid, NPR, 6 Aug. 2025 In Taiwan, government health campaigns have seen a drop in use, particularly among younger generations in urban areas, but the betel nut is steeped in the island's history.—New Atlas, 4 Aug. 2025 As the humid jumble of roaring motorcycles and bubble-tea shops vanishes behind me, knotted electrical wires make way for betel nut plantations and clotheslines in small-town backyards that straddle railroad tracks first built for loggers.—Chris Schalkx, Condé Nast Traveler, 7 Feb. 2020