People may have been getting high off cannabis earlier than previously thought, at least 2,800 years ago, a new study in the journal Science suggests. Archaeologists who led a dig at a monumental tomb in Siberia said they turned up evidence of the earliest kn…

“It’s extremely rare that we have both preserved plant parts and human soft tissue with the active compounds in it in the same context,” says study co-author and University of Bern archaeologist Gino…