ego skilled self-esteem br may summit Mt Everest br in heights rarified inflated... br feeling approach supremacy br climb into thin air past... br br death zone 8000 metres br temperatures chill low level br frostbite extremities body parts... br exposed to contact ice air br snow shaded well-frozen... br br deaths injury mistake slipping br falling stalks pounces high winds br threatens life diced changeable... br potential threat stalks climbers br baited breath altitude on Everest... br br low atmospheric pressure br at summit alluring on Everest br about a third of sea level... br low pressure resulting in br availability in limited about... br br a deprivation starved third oxygen br left to breathe in blood oxygen level br summit plummets expunged depleted... br vastly increased pace breathing rate br times three four hundred percent... br br exhaustion attempting to breathe br lacking oxygen extreme cold br climbing hazards all contribute... br to death zone death toll an injured br climber who cannot walk is in... br br serious threatening life trouble br rescue by helicopter death zone br too high cannot peak fly carrying... br a climber off death zone heights br reaper Everest is extremely risky...