Further down: > there was a single brain region where we saw that higher cannabis use was actually associated with lower brain volume – the posterior cingulate

Further down: > there was a single brain region where we saw that higher cannabis use was actually associated with lower brain volume – the posterior cingulate, which is part of the limbic system and is implicated in processes like memory, learning, and emotion. That said, some research suggests smaller posterior cingulate volume is actually associated with better working memory, so it’s a little unclear what this means.