At this point, the inside will become negative again. And so this will decrease as shown by this curve. So this is known as the repolarization period. It's the period by which the cell attempts to return the membrane back to the resting potential. Now, because at this particular point, let's say at this point, our potassium, the membrane of the cell, is more permeable to potassium than normal. That means it will go slightly below our resting potential.