So a concentration of 26 mercury is needed for exactly half of those hemoglobin molecules to become saturated to bind that oxygen, compared to the 2 mercury for the myoglobin. And what that means is that hemoglobin binds oxygen much less likely than the myoglobin. And so it has a lower affinity for oxygen than my globin. And once again, if we read the curve backwards, so going this way, the protein is binding the oxygen, but going backwards, the protein is dissociating that oxygen. And so if we go this way, we see that our hemoglobin releases that oxygen much more readily than myoglobin. And that's exactly what makes hemoglobin much better at carrying the oxygen from the lungs and releasing it at the tissues and cells of our body.