So as we decrease the temperature, a certain segment of that protein in its denatured state becomes to stabilize. And because of that, it begins to interact with some segment. And as those segments interact, they stimulate other segments to stabilize themselves and to interact. And so eventually, this cooperativity of these different segments and the protein caused the folding process to basically take place quickly, as shown by the following sharp rise in our curve. So the curve describes how most proteins in our body fold or unfold. And notice that the curve shows that the majority of proteins transition sharply from the unfolded to the unfolded state and vice versa.