“IT DEFINITELY fogs your brain,” says Lambros Messinis of the University Hospital of Patras in Greece, on the effects of marijuana. That, of course, is why people smoke it in the first place. What Messinis claims, however, is that it has a more serious effect: he says that long-term users gradually become worse at learning and remembering things.
Messinis and his colleagues compared the mental abilities of 20 people who had smoked dope at least four times weekly for an average of 15 years with 20 shorter-term users averaging 7 years of use, and 24 controls. None of the subjects…
