Chesty cough brought on by exercise

[swampyseifer]

Yes - lungs have a large reserve and you're probably not using them to their full capacity until you are really pushing it. I get the same thing. I wouldn't worry unless it persists for days or is bloody.

As far as I am aware you NEVER use your full lung capacity, if your lungs empty completely they collapse flat and wont reinflate!

When I was first at the gym and I found the intense stuff like jogging or steep climbing on the treadmill made me cough a lot...the gym guy told me I need to drink more as its my throat and lungs "drying out" because of the fast raspy breaths. TBH I now always drink little but often when doing intense stuff and I dont get the cough at all...