Appreciate the details. I figure COPD is likely in my future if not already here, so maybe the GHK-Cu I've been using could make a difference.
Diagnosed with COPD twenty years back, I know there's no cure, just ways to try holding steady. After seeing mentions here and checking scientific papers, I came across claims that GHK-Cu might reset genes and directly aid damaged lung areas. One paper looked at how it counters muscle problems from smoking through a sirtuin pathway in COPD patients.