this post was submitted on 31 Mar 2025
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[Migrated, see pinned post] Casual Conversation
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...That's really not any better. Using CO2 to suffocate an animal is every bit as cruel as allowing a snake to constrict it's prey.
Yeah CO2 is the only chemical put lungs detect right?
You would feel the suffocation as it happened and the panic.
Now Helium that's a way to go
My understanding is that there's a mechanism in most mammals for detecting a build up of CO2 in the blood. Normally you'd exhale CO2, but breathing it in increases concentration, which leads to feelings of panic and suffocation. With any inert gas--helium, hydrogen, nitrogen, argon, xenon, etc.--you aren't getting CO2 levels building up, so you don't even realize that you're suffocating. I think that can even be the case with carbon monoxide, although that has other problems as well. Regardless, CO2 suffocation is definitely not a human way of killing an animal. Or a person.
That's the mechanism that causes a panic cycle in hyperventilating too right?
You're panicking so you hyperventilate increasing CO2 levels causing more panic.
On the upside when you pass out you go back to breathing normally and don't die.
So my mother used to say to my brother when he would do it