The limbic system is a group of structures in the brain that help with memory, learning, and emotional regulation. Learn more here.

Roughly 2.5 million Americans are addicted to heroin and opioids like Oxycontin. Researchers say addiction takes over the brain's limbic reward system, impairing decision making, judgment and memory.

The Anatomy of the Limbic System The limbic system has two primary components, the amygdala and the hippocampus. The amygdala responds to stimuli by producing emotional responses, particularly ...