Home > General Medicine > What Is The Immune System? Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Nov 23, 2010 by dreliaz, Views: 3707 In this segment, Dr. Isaac Eliaz explains the immune system's role as "the army of the body." While childhood diseases serve as the primary mode of training, there are several additional ways to enhance the immune system's innate strengths and ensure lasting health. Medicinal mushrooms have served as core components in integrative medicine for centuries, due to their unique ability to improve immune communication while absorbing toxins and heavy metals in the body—safely and naturally.