New Study Finds No Evidence of Long-term Damage from Daily Cannabis Use

A new joint-study between the University of Colorado and the University of Louisville has been making waves in the medical cannabis community. That study boldly titled, “Daily Marijuana Use Is Not Associated with Brain Morphometric Measures in Adolescents or Adults”, makes a compelling case based on three different physical analyses of the brain in daily cannabis users vs. non-users. Taken alone, there’s nothing particularly advanced about the study from a technological standpoint; the real significance of the study is that it flies in the face of a larger body of evidence that seems to indicate that cannabis *can* cause structural changes. …So who’s right? Does cannabis cause structural damage or not? Furthermore, if this study is correct, how could so many independent studies from around the world be wrong?

According to the researchers, the issue revolves around dependent variables and how to account for those variables. To give an analogy...

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