Jul 28, 2014 ... Reality Check: Does Marijuana Make Kids Dumber? ... best evidence is that, if  you use marijuana as a teenager regularly, you lose ... Bottom line--if you smoke  pot early and often as an adolescent, it can ... But eight IQ points?
Jul 27, 2014 ... "We do not know the outcome except that the best evidence is that you lose -- if  you use marijuana as a teenager regularly -- eight IQ points.".
Mar 3, 2014 ... Studies show regular marijuana use by teens — once a week or ... Evidence On  Marijuana's Health Effects Is Hazy At Best ... continued to use marijuana for many  years lost about eight IQ points ... "It's not rocket science to think if you smoke  weed when your brain is developing, that it can't be 'good' for you, ...
Feb 10, 2015 ... If you've ever had the misfortune of enduring a pot smoker who takes ... An eight  point reduction in IQ is enough to have a significant, negative impact upon your  life. ... able to measure the lasting effects of adolescent marijuana use (even ...  Indeed, the reduction in IQ from smoking marijuana regularly was ...
Jan 14, 2016 ... The evidence suggests that those who start using cannabis from a ... Importantly  the teenagers had also taken an IQ test when they were 8 ... Even those who had  only used cannabis a handful of times scored roughly 2 IQ points lower ...  However, we also noted that the teenagers who had used cannabis ...
The best evidence is that you lose -- if you use marijuana as a teenager regularly -- eight IQ points.