So basically, what we see happening is the sodium ions can no longer flow into that cell, while at the same time, these potassium ions begin to flow out of the cell. And what that means is the positive charge inside the cell will begin to decrease. And so that means we'll see a drop in that voltage difference between the membrane. And so, because of that, this is known as the repolarization period. So it tries to repolarize and return that voltage to its resting membrane potential of about negative 70 millivolts. But let's see what happens.