I smoked for 10 years off-and-on till age 27, when I quit for good. That was 41 years ago, and I was stunned to just receive a diagnosis of emphysema! I've also exercised 3-5 days a week most of my adult life, though a painful knee injury has limited that recently. Most of the treatment advice I read says quitting smoking is the most important step to slow progression, along with exercise. But I've already done/am doing these things.
Would love to hear from anyone else in a similar situation, especially those who have been diagnosed for awhile, what the course of your illness has been, and what you've done to slow its progression.