CO affinity for hemoglobin

Carbon monoxide (CO) has a much stronger affinity for hemoglobin, the protein in red blood cells that carries oxygen, than oxygen does. When CO is inhaled, it binds to hemoglobin more effectively than oxygen, preventing the blood from transporting oxygen to tissues. This can lead to serious health risks, including tissue damage and death, as the body is deprived of the oxygen it needs to function. Even a small amount of CO can be dangerous, highlighting the importance of ensuring good ventilation and avoiding sources of carbon monoxide exposure.