The Limbic System is an area of the brain that is associated with memory, emotions and motivation (arousal or stimulation). It is located just above the brainstem and below the cortex. The structures of the limbic system include the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and the cingulate gyrus.
The main function of the limbic system is to control our emotional responses in response to environmental threats and stimuli. In other words, it functions as a survival mechanism; releasing certain hormones into our bloodstream that trigger various emotional experiences that help us survive and thrive.