When I moved to Bend Oregon at 3,800' (from sea level)feet it took about 6 weeks to able to do hard work without noticing any problem. I find it interesting that the same medical equipment is used here and normal people still show a blood oxygen level of 99 to 100%. I wonder if someone just moved here from sea level what it would show? 85%? I do not know how these things work, perhaps one of our medics does. Theoretically it takes one day per thousand feet to adapt, and it takes two weeks for your body to replace all of its hemoglobin, but what does that mean in reality?

Pika, sorry to here that Pikas did not get protected status...
Jim