People may have smoked marijuana in rituals 2,500 years ago in western China
Cannabis may have been altering minds at an ancient high-altitude cemetery, researchers say

SMOKED OUT Excavations of tombs such as this at a cemetery in western China yielded evidence that people burned cannabis and inhaled its fumes during rituals for the dead around 2,500 years ago.
Xinhua Wu
This article is only available to Science News subscribers.
Subscribers, enter your e-mail address to access our archives.
