On Friday, May 19, 2017 at 12:29:50 PM UTC-5, Duster wrote:
I remember reading an air force study some years ago where they found reduced judgement in their pilots at 5000 feet. I started using oxygen from 5K from then on.

Gary Kemp (NK)

Do you have a reference for that study?

looking for that study I found this one.

https://www.ndcn.ox.ac.uk/news/aviat...e-in-the-lungs