Season 25, Episode 6 Everest - The Death Zone

First Aired: February 24, 1998

Climbers trek to the top of Mount Everest to test how high altitudes affect the brain. At various altitudes, as oxygen levels decrease, tests reveal the brain begins to slow, and climbers find it harder to perform simple tasks.

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  • Premiered: March 3, 1974
  • Rating: None
  • Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)

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