Using marijuana at an early age could have long-term consequences on your brain and it may even lower your IQ, according to a new study in the Proceedings of the National Academy of Sciences. Researchers found that compared to nonusers, people who smoked marijuana starting as early as age 14 have less brain volume, or gray matter, in the orbitofrontal cortex. The younger the individual started using, the more pronounced the changes
http://www.cnn.com/2014/11/10/health/pot-and-your-brain/index.html?hpt=hp_t2
