* https://www.webmd.com/smoking-cessation/what-happens-body-qu...
According to the article I have 5 years to go till my body has completely recovered from the effects of smoking.
I did not smoke on a plane, but smoking on trains (and many places indoor) was "normal" before like 2010 around my place. I did not like it even as a smoker and rather went out.
But fully echo you that quitting was one of the best decisions of my life.
Two years quit and I was still having dreams where I am lighting up…
Twenty-seven years since now and it's all a distant memory. Even forgotten in dreamland…