On Mar 21, 12:42*pm, Mark Jardini wrote:
Oxygen is also good treatment for all altitude related problems.


Wasn't that simple back then (in the late1960's) and still is not.

There are some altitude related problems for which oxygen is a part of
good treatment.
There are others for which oxygen is not any part of good treatment.

For many years, climbers have used the evidence (from randomly
controlled medical research studies)
that anti-inflammatory agents - including aspirin - reduce the
incidence of mountain sickness during
rapid height gains - even to altitudes lower than those for which FAA
regulations state "Each pilot of an
unpressurized aircraft shall use oxygen continuously ... ." The
benefits of anti-inflammatory agents are
independent of lowered oxygen concentration.