Seeing Green: Pot Changes Brain's Response to Money

Smoking marijuana may change the way people's brains respond to certain rewards, such as the prospect of winning some money, according to a new study. The researchers found that the brains of people who smoked marijuana did not respond to the idea of winning the money as strongly as did the brains of people who did not use the drug. The results suggest that for people who smoke pot, "there is not as much pleasure that is being received from something that would naturally give somebody pleasure,"