The world record is 24 min 37.36 sec
How can they stay conscious for so long on a single breath? Doesn’t the body need a constant supply of oxygen?
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A lot of people mention the hyperventilation before breath holding but this can be very dangerous especially for holding your breath underwater as it can lead to shallow water black outs and drowning.
Essentially because the hyperventilation will remove most of the CO2 from your body and CO2 not oxygen is the trigger you need to breathe. You may end up without enough oxygen in your body to stay conscious even if you don’t feel the need to breathe.
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