I think it has something to do with the thc settling in certain tissues of the brain and sortta blocks the short term part. Once the thc starts to leave your body your short term will get progressivly better. I think the study I read said something like: Even though it leaves your body and you get better, you do lasting damage to your brain. At least, that is what I read; I guess when quoting I should actually look up what I read. lol I'm too lazy... Also, did you know that thc is also stored in your fatty tissues, that is why it takes longer for fat people to get it out of thier system? Dman it... I bet if they did a study of my ass they would find it made of pure thc... ha ha ha ha