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Tepix
11 months ago
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Croatian freediver held breath for 29 minutes
I'm curious about breath holding and freediving: When you're depriving your body of oxygen for such a long time, do you not risk cells dying, in particular in your brain?
If not, how do we know it's not happening?
ktta
11 months ago
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It does happen-- which is why we're told to watch out for high CO2 levels in our living spaces and let fresh air in often
nradov
11 months ago
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A slight increase in inspired CO2 levels might cause some mild symptoms but it won't kill brain cells.
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If not, how do we know it's not happening?