As a former flight attendant for 15 years, our annual emergency revalidation instructors drilled into us to recognise the onset of mild, moderate and sever hypoxia. There are many videos on youtube which show these symptoms in controlled environments and while some have an element of humor about them, there are those that also demonstrate real life tragic outcomes
http://www.youtube.com/watch?v=YXdxFT6lINw&feature=fvsr Be careful friends. -- Darren Crompton AUSTRALIA My web site: www.kr-2s.com
