> The whole idea behind "breathing" is to regulate the CO2 in the blood
True, but two devil's-advocate what-ifs come to mind.
First, the system isn't so responsive to a lack of oxygen, and in many of the "low ventilation with people" scenarios, higher CO2 correlates with lower O2, because that's the conversion going on.
Second, might the body down-regulate mental resources as a response to chronically higher CO2 in the environment? As an adaptive or precautionary measure, helping keep that blood-concentration correct?
True, but two devil's-advocate what-ifs come to mind.
First, the system isn't so responsive to a lack of oxygen, and in many of the "low ventilation with people" scenarios, higher CO2 correlates with lower O2, because that's the conversion going on.
Second, might the body down-regulate mental resources as a response to chronically higher CO2 in the environment? As an adaptive or precautionary measure, helping keep that blood-concentration correct?