Posthuman Blues

Morphine Apparently in Your Head

"'Without doubt, human cells can produce the alkaloid morphine,' Zenk wrote in the paper. 'The studies presented here serve as a platform for the exploration of the function of 'endogenous morphine' in the neurosciences and immunosciences.'"

I have a lurking suspicion that the brain, properly triggered, can produce just about any psychoactive substance or its functional equivalent.