How high did our ancestors get? We might soon be able to tell.

Traces of heroin and cocaine have been found in the tartar of 19th-century Dutch farmers.

Photo: Elena / Adobe Stock
  • Archaeologists can now tell what drugs our ancestors used thanks to tooth tartar.
  • For this study, they tested 10 cadavers and discovered 44 drugs and metabolites.
  • This new method will offer us insights into the types of drugs our ancestors used.
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