And as the concentration of our sodium ions inside increases, the amount of positive charge also increases. So eventually, the inside will become positive, the outside will become negative, and that will reverse or depolarize our cell membrane. It will reverse the polarity of that membrane. So once again, the opening of these channels will make the membrane much more permeable to sodium ions than to potassium ions. And the high influx of sodium into our cytoplasm, the cell will make the inside of the cell positive and the outside negative. And this will reverse the polarity.