Now, the last thing that I want to mention is something called the refractory period. So we have an absolute refractory period and we have a relative refractory period. So the absolute refractory period is the period between this point and this point. So remember, at this point, our sodium voltage gated ions begin to recover. They begin to go from the inactivated state to the closed state. So basically, between the initiation point when the stimulus is applied and before our inactivated sodium channels begins to recover, this is known as the absolute refractory period.