this post was submitted on 23 Jan 2024
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I fully agree with everything you said but I'm going to use your comment as a jumping off point anyway: I have to wonder, would the condemned feel like they're suffocating as it's happening due to lack of oxygen? Or would they simply not notice and just kinda fade out of consciousness?
When you're suffocating, you don't really notice that you don't have enough oxygen. You just feel that you have too much CO2. So if you're in a nitrogen chamber or in low enough pressure air, you don't notice you're suffocating. You just fall asleep.
Smarter Every Day did a video on oxygen depletion. You get loopy. As the other comment said, that burning feeling is from high CO2, not low O2. Put your mask on first, then help others.
https://youtu.be/kUfF2MTnqAw?si=THihWZJ-mw1Qk3VN
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fun fact: the brathing reflex is caused by excess co2 and not a lack of oxygen. thats why people regularely suffocate by going into enclosed spaces which are oxygen deprived