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This issue has been discussed more times than I can count, and partisans from both sides of the aisle have painted their sides of the story.
So, what's the truth? Last time I discussed this issue, I used this article:
Cannabis smoking 'permanently lowers IQ' - Telegraph
No one seems to know the number of flip-flops on this issue in regards to marijuana's effect on IQ. What do you think?
So, what's the truth? Last time I discussed this issue, I used this article:
Researchers found persistent users of the drug, who started smoking it at school, had lower IQ scores as adults.
They were also significantly more likely to have attention and memory problems in later life, than their peers who abstained.
Furthermore, those who started as teenagers and used it heavily, but quit as adults, did not regain their full mental powers, found academics at King’s College London and Duke University in the US.
They looked at data from over 1,000 people from Dunedin in New Zealand, who have been followed through their lives since being born in 1972 or 1973.
Participants were asked about cannabis usage when they were 18, 21, 26, 32 and 38. Their IQ was tested at 13 and 38. In addition, each nominated a close friend or family member, who was asked about attention and memory problems.
Cannabis smoking 'permanently lowers IQ' - Telegraph
No one seems to know the number of flip-flops on this issue in regards to marijuana's effect on IQ. What do you think?
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