Dr. Carl Hart Mentioned in Washington Post

October 22, 2014
Blurb
A 2012 Duke University study made international headlines when it purported to find a link between heavy marijuana use and IQ decline among teenagers. Other researchers questioned the findings almost immediately: Columbia University's Carl Hart noted the very small sample of heavy users (38) in the study, leading him to question how generalizable the results were.
Read more: http://www.washingtonpost.com/blogs/wonkblog/wp/2014/10/22/no-marijuana-...