The Oxygen Test That Fooled Future Astronauts | BBC Earth Science
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Stress can impair judgement in unexpected ways. As these astronaut candidates undergo low oxygen training, some become convinced they're feeling symptoms that exist only in their minds. Best of Earth Science: http://bit.ly/EarthLabOriginals Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx
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