Less oxygen will be delivered to the cells of our tissue. And what this means is when carbon monoxide binds to our hemoglobin, it causes a leftward shift in our hemoglobin curve. And not only that, it also lowers the actual curve. And that's because carbon monoxide binds to the heme groups, and that means it actually lowers the oxygen carrying capacity of our hemoglobin. And that's why we get the following curve. For when we have a high concentration of carbon monoxide inside our body.