limbic system

 the Amygdala it is the part of the brain that tells it weather to: flee,fight or freeze. and while it is  scared or mad it is hard for people to think properly or to save memories.
now the hippocampus it is the part of the brains that saves the short term memories of people and if it thinks they are important it passes them on to the pre frontal cortex which stores all of the long term memories and basic functions of the body. a fact about the pre frontal cortex is that it does not mature until you are about twenty.