And that means that all the sodium gated channels are actually closed, all the sodium voltage gated channels are actually closed and inactivated. And that means no matter how high the stimulus is, no action potential can be generated in the region right before our action potential. So once again, you might be wondering why the action potential does not move back towards our cell body. So we know it moves this way, but why doesn't it move backwards? Well, this is because the region of the membrane right before the depolarized section is in its absolute refractory stage. And that means no matter how large our stimulus actually is, no action potential will take place in that region.