When you exercise or work outside in winter, that dry feeling at the back of your throat indicates the cold air has irritated your throat. Racehorses share a similar experience: exercising in below-freezing air causes mild airway injury.
Recent research suggests these kinds of experiences, also shared by winter athletes, sled dogs, meatpackers and even fisherman, may be the beginning of a cascade of events leading to more serious conditions later.
Is winter flu worse because of exercise-induced 'window of susceptibility'?
