The ice is cool. But real transformation happens before you ever touch the cold. The Wim Hof breathing techniques really go as deep as the autonomic nervous system, and the innate immune system—that’s what brings them under control. Instead of being alienated and disconnected from this control—and having a lot of trouble with inflammation and stress in our lives—we now have control over our adrenaline and cortisol. The breath is a door. It leads to corridors that take us deep within ourselves. A