Lol I don't know. I mean every thing has a side effect. Sometimes I feel like that stuff happens to me. But it's not like it's not my fault, if I didn't smoke as much as I do I'm pretty sure my memory would be good and work well. Maybe it's true with some people. And maybe it is the weed but lately I am just not a morning person. I am so grumpy in the morning. But then again every time I wake up in the morning it's by some one shaking my shoulder waking me up out of my good stoned sleep to go to school lol!