Imagine pushing up a mountain trail or gliding across fresh snow, only to feel your chest tighten and your breath slip away. This episode by Jenson Rawlings explores exercise-induced bronchoconstriction in the outdoors, including why cold air, altitude, and intense effort can trigger narrowed airways, and how adventurers can recognize the signs. We’ll unpack the science, talk through field-tested management strategies. Whether you’re training for an ultramarathon or simply love the backcountry, this discussion offers practical tools to keep your lungs open and your adventures safe.