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V. Rama Kishanadded this to Extra
How long can you go without air?

Carbon Dioxide

How long can you go without air?

BBC Future - Frank Swain

A few people can hold their breath for an astonishingly long time, discovers Frank Swain. How do they do it? Last November, 32-year-old Nicholas Mevoli lay on his back on the ocean surface, gulping air like a fish to pack his lungs with air. Then with a small splash, he dove under the water and …

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