We hypothesize that exercise-induced bronchospasm (EIB) at the NCAA Division I collegiate level is over diagnosed, while poorly controlled asthma resulting in exercise-related symptoms in this same population may be under diagnosed, being erroneously attributed to EIB. This project will test individuals self-identified as having exercise induced bronchospasm or asthma, as well as gender-matched controls from the same sport, with eucapnic voluntary hyperventilation to assess for the presence of EIB or asthma. By making the correct diagnosis, improved health outcomes may be achieved and athletic performance may be enhanced.