Anecdotal: I struggled with exercise asthma for as long as I can remember up until about a year ago (currently 28). I had in my head that I'd never be athletic

Anecdotal: I struggled with exercise asthma for as long as I can remember up until about a year ago (currently 28). I had in my head that I'd never be athletic for this reason. Last year I started heavily lifting weights with a trainer in order to correct some of the slouch I'd developed from programming and mentioned to my trainer that I would never be a runner because of the breathing issues. I'm not sure if his response to that came from a place of wisdom or not, but he effectively told me to "quit making excuses and get after it" and started integrating runs into my workout. My lunch issues were always exacerbated in cold weather, and this was in November where the mornings were around 38f. It started with ~1km runs and I honestly thought this guy was killing me. I was bringing an inhaler in my truck and would use it between the "warm up" runs and doing weights because my lungs tight and on fire. I was doing this routine 3 days a week that entire winter, and the length of the warmup run would range from 1-3km. I started noticing the pain less and less as the weeks went by. I actually started enjoying it, and began running on the days I wasn't going to the gym. I worked from 1 mile runs to consistently doing 4-5 5ks a week, with the occasional longer run. I still try to do 3-4 5ks a week to this day. I hadn't really thought about it until this comment, which is probably what prompted this long-winded response. For me though, the solution was to just keep doing it. Your lungs get stronger.