I need an upgrade

They say that there are a lot of reasons why we sometimes just can't really remember everything that needs to be remembered. Like I have been feeding my brain with all these new information from all our lectures yet when I try to recap these info, I go blank. Some say it's because of drinking too much alcohol or not getting enough sleep, etc. True, but I blame old age. I may not be senile but my memory isn't as sharp as it used to be. If only our brains were like computers and we could upgrade our ram so we could absorb more information. If this was the case then I'd be able to ace every exam without really exerting too much effort. If only it were that easy.