You might be smoking too much weed, bro. A preliminary study has found that the memory center of developing brains might be adversely affected by excessive cannabis use. Scientists looked at 97 people who toked up daily and found that the shape of their hippocampus physically changed. Participants also performed worse on long-term memory tests, suggesting that pot may affect one’s ability to file and recall facts. More research is needed, but teens are being warned that their recreational habits … wait, what were we talking about?