Welcome to McGill Journal of Medicine (MJM)’s Let’s Talk LMCC. This podcast series was designed to support medical students preparing for the Canadian Medical Council (MCC)’s licensing exam. Each episode aligns with specific LMCC objectives and is structured into two parts. Part one features an expert-led overview of the topic, followed by part two where we discuss LMCC-styled questions to reinforce learning. In this episode, we are joined by our expert advisor, Dr. Susan Wang, a second year Internal Medicine resident, to delve into LMCC Objective 99-2: Hyponatremia. This episode was written by Zachary Rehany and Dr. Weixiang Yan and edited by Dr. Susan Wang and Dr. Esther Kang.