As we are trying to learn new information to perform well in class, we may not realize that there is an active part of our brain that is trying to make us forget. This might seem like a useless service, but the reality is that when we forget unimportant information, we are better able to make good decisions and function in society. This is very important to know as we try to learn and make new memories, while letting go of the unimportant information we don't need.