Lifetime Cannabis Use NOT Associated with Later IQ Decline Says New Medical Study

The notion that smoking cannabis inevitably leads to lower IQ has been repeated so often it’s taken on a life of its own. But what does the science actually say? A fascinating new study from Denmark, following over 5,000 men across four decades, has not only challenged this assumption but turned it on its head. Surprisingly, the research suggests that cannabis users experienced less cognitive decline over time compared to their non-using counterparts.