Your Immune System

Your immune system is working every second—identifying threats, coordinating defenses, and protecting your body through an extraordinary network of cells, tissues, and organs. In this Miracle Moment, we journey inside the human body to discover how the immune system detects invading germs, responds to danger, and remembers past infections so it can react more effectively in the future. From fast-acting innate defenses to highly specialized antibodies and immune cells, every layer has an important role. It is a remarkable system of protection, communication, and coordination. The more closely we examine life, the more wonder we discover.