Used once or more a week, 8 points in your IQ could be lost
http://www.npr.org/blogs/health/2014/02/25/282631913/marijuana-may-hurt-the-developing-teen-brain
Used once or more a week, 8 points in your IQ could be lost
http://www.npr.org/blogs/health/2014/02/25/282631913/marijuana-may-hurt-the-developing-teen-brain