Study: Frequent marijuana users make riskier decisions

2/15/20–A study using a card simulation where participants try to earn as much money as possible by choosing from different decks found that participants who used marijuana at least five times a week in the past year were prone to choosing decks with large rewards but larger losses, leading them to have a low net score for the task. Those who reported minimal to no use of marijuana chose decks with small rewards and small losses, but scored a high net score by the end of the task, researchers note. Read