So I got a pulmonary function test done today after being sick all of October and half of November with some kind of bronchitis-sinus infection duo which left me wheezy and barely able to make it up the hill to one of my classes without experiencing severe shortness of breath. My doctor wanted it done to see if I was developing asthma or some other issues with my lungs.
Compared to a hypothetical "average" person of my same height, weight, sex, age, race, etc. it turns out I don't have average lung capacity. I have well above average capacity, on par with what might be expected of a runner or other athletic person.
Must be all this athletic sitting I do, because I sure don't run or go to the gym ever.