A study published last year shows that teenage marijuana use can lead to decreased IQ in adulthood. According to Nature, "when their adult IQ was tested at 38 years old, the heaviest and most persistent adolescent-onset users in the study had experienced an average decline of eight IQ points from childhood to adulthood." [more inside]
A treatment program for the chronic cannabis user. Do you think chronic use of weed actually does this to you? Or is it all just more anti-drug propaganda?