That's a very interesting observation. I have asthma (adult-onset), and I have problems with wheezing and stuff when I'm exerting myself or around allergens. Mine is under control, but it's never something you get over ... even if it is under control. I'm on four different medicines, and I still got bronchitis six times this year (because of the allergens). You just learn to deal with it, and it has gotten easier for me recently, but it's still there and something I have to deal with (like not being around my pets - I had to give them to my parents - change positions in the library where I work - I'm highly allergic to dust, wear masks when I'm at the stables - allergic to dust and horse dander - not go to places with smoking or fumes, etc.). You deal with it ... even if it sucks at times.