The Physiology of High Altitude Climbing:
What happens to your body at high altitude? Why do some
people get sick and even die? According to Dr. Eric Weiss,
when trekkers first started to going to Everest, one out
of every 50 died. Nowadays, thanks to awareness of the consequences
of high altitude, that figure is one in 10,000 to 50,000.
The medical syndromes encountered at altitude all come down
to the body's response to the decline of oxygen pressure.