Ban fake news. They invest in it and then tell it differently. Those fucks should be weather men. They only need to be right 5% of the time. Must be nice. Fuck them. CANADA has it right. AMERICA BE JEALOUS. LETS MAKE MONEY BABY!!!!
“Beyond the role of cognition in vulnerability to substance use, the concurrent and lasting effects of adolescent cannabis use can be observed on important cognitive functions and appear to be more pronounced than those observed for alcohol”.
This was an actual] clinical study of a population-based sample of 3,826 seventh-grade students from 31 schools consisting of 5% of all students entering high school in 2012 and 2013 in the Greater Montreal region.
This as opposed to the article you cited in JAMA which was not a clinical study but alternatively was a Meta-analysis or review of a group of studies and can be found at the following URL;
The difference being the NBC article was quoting an actual clinical study. The article you quoted is a meta-analysis or comparison of a group of studies not an actual clinical study
The mistake was easily made by one biased or a novice in clinical trials and clinical studies and the jargon or terminology used in both.