Hi Rex1 and thanks for your post. You've expressed a concern that we've heard from many in our community. As Janet has said, the progression of the disease can be slowed down in several ways. I thought this article might provide you with some insight for your question: https://copd.net/living/progress-can-be-slowed/. I do hope you find it to be helpful.
All the best,
Leon (site moderator)