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The abilities required are developed through practice and mostly focus on three areas: increasing the oxygenation capability of the body retraining autonomic apnoea responses minimising the metab...
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#1: Attribution notice removed
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System
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2020-05-27T11:08:49Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/21580 License name: CC BY-SA 4.0 License URL: https://creativecommons.org/licenses/by-sa/4.0/