A lot of fresh air enters the lungs through breathing because
CO2
tolerance is low.
Fresh oxygen available
Plenty to fill the blood
→
Venous blood contains too much oxygen when it returns to the
lungs. Not able to pickup much new oxygen.
Venous blood is too full!
Due to O2 release block ⇒
→
Blood oxygen saturation level still appears good (95-100%).
Blood has plenty oxygen
Enough to give to cells
→
Blood releases less oxygen to cells. Oxygen is stuck in the blood.
The blood is too sticky!
Root cause: low CO2 level
→
Cells consume less than optimal oxygen, although blood is full of
oxygen!
Cells consume too little oxygen!
Due to low oxygen release