The liver is one of the most important organs in your body—it is responsible for processing nearly everything we consume. It regulates critical processes, metabolizes medications, digests lipids and proteins, filters alcohol, and moderates sugar levels. These functions are critical to preserving our health, and thus addressing liver disease has never been more vital. Understanding the unique anatomy and physiology of the liver is key to acknowledging the various pathologies that affect people worldwide, and making an effort to prevent disease.