this post was submitted on 19 Mar 2026
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[–] gandalf_der_12te@discuss.tchncs.de 8 points 4 months ago (1 children)

actually i think the body has receptors for CO2? not for CO though. like CO2-rich air outright smells sour.

[–] figjam@midwest.social 18 points 4 months ago (1 children)

Fun Fact - Your body cannot sense when air doesn't contain enough oxygen to keep you alive. However it can sense when there is too much CO2 and causes you to panic.

[–] Apytele@sh.itjust.works 4 points 4 months ago* (last edited 4 months ago)

Depends. The reflex can get fucked up in certain long term lung disorders or some people intentionally fuck theirs up for freediving. It's a contraindication to gaseous nitrogen for MAID / death with dignity.