The amygdala is a small, almond-shaped cluster of nuclei located in the temporal lobe of the brain. It plays a critical role in processing emotions, particularly fear and pleasure. Functioning within the limbic system, the amygdala helps in the formation and storage of emotional memories, influencing behavior and decision-making. Its activation during perceived threats triggers the fight-or-flight response. Dysregulation of the amygdala has been linked to various mental health disorders, such as anxiety and depression.