A 25,000-Year-Old Drug Habit Was Hidden in Ancient Teeth

Ancient teeth suggest humans were using psychoactive betel nuts 25,000 years ago, pushing the history of habitual drug use deep into the Ice Age. Archaeologists from Griffith University have found evidence suggesting that humans were using mind-altering substances far earlier than previously believed. The research team, led by Professor Adam Brumm of Griffith’s Australian Research [...]

from SciTechDaily https://ift.tt/s46MStx