On: Higher Levels of CO2 May Diminish Decision Making ...

[parhurs]

Well, too little carbon dioxide in the bloodstream changes the blood's pH, which is a negative. Can't tell how ambient CO2 levels affect it though.

[Nanite → parhurs]

This would be hyperventilation syndrome

https://en.wikipedia.org/wiki/Hyperventilation_syndrome

CO2 is not simply a waste product we exhale, we need it for pH regulation of our blood.