Their red blood cell count is twice as high as ours, sufficient to supply their muscles with oxygen even at this extreme altitude.

但是藏羚羊也有优势，他们的红血球数量是我们的两倍，即使在如此高的纬度也足以为他们的肌肉输送氧气。

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The longer people spend at extreme high altitude, the longer their bodies lack the needed amount of oxygen and the lower their energy stresses similar to those caused by the diseases.

WSJ: Mayo Clinic Researchers on Everest Study High Altitude's Effects on the Body

Depletion of ozone is caused by extreme cold temperatures at high altitude and the presence of ozone-destroying gases, such as chlorine and bromine, in the atmosphere, the ESA said.

CNN: Ozone hole grows in 2008

Produced from wild agaves harvested at high altitude, it is a seductively dislocating, subtly knit but extreme stream of sensory information.

FORBES: The EYE: Mezcal, Hold the Worm