[justanotherc]

Is this really all that groundbreaking? I had a teammate in highschool remark that you could pinpoint in his grades the times when he started/stopped smoking weed.

[cgriswald]

That could have indicated poorer cognitive performance, reduced motivation, poorer time management, and any number of other things.

[justanotherc]

Well not if you ask him as he would tell you his grades were highly correlated to his smoking habits. Obviously its a non scientific anecdote, but my point is I thought it was well established common knowledge that marijuana affects cognition.