The Limbic System is a group of interconnected structures, among which are the hypothalamus, the hippocampus, the amygdala, and several other nearby areas. It appears to be primarily responsible for our emotional life, and has a lot to do with the formation of memories. Buried within the depths of the cerebrum it consists of a collection of ancient brain structures which are preeminent in the mediation and expression of emotional, motivational, sexual, and social behavior. The limbic system is involved in learning and the formation of new memories, monitors internal homeostasis and basic needs such as hunger and thirst, controls the secretion of hormones involved in pregnancy and reactions to stress, and even makes possible the ability to experience orgasm, depression, fear, rage, and love. The limbic system is not only exceedingly ancient but originally provided the foundation for the development and evolution of much of the brain.
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