Sorry to be hogging the internet airwaves. I'm usually more of just a reader. But I mentioned that I just did the 'High Altitude Training" seminar at the 99's conference. It was a blast and very educational. One of the area women wrote a blog about it and she summed up everything perfectly. So if you want a good explanation of hypoxia (maybe better than mine). just read her blog.
Link attached. http://agirlandherplane.com/2014/07/this-is-your-brain-on-reduced-oxygen/ Ray_pilot New Orleans