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Originally Posted by jeffk
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This study is based on starting as teenager and also has been disputed since the study didn't take into account many other factors that could lead to lower IQ levels for the participants. Other studies provide a counter the 'evidence' posted in this study:
http://www.cbsnews.com/news/does-mar...allenges-link/
http://www.medicaldaily.com/smoking-...use-may-307808
http://www.washingtonpost.com/blogs/...lower-your-iq/
Too many people just run with the headlines nowadays and nobody takes the time to actually vet the information being provided to them...guess this is the norm in the gotta-have-it-now society we live in...