People with epilepsy have rebound issues with their neuron sending a signal. So we've hyperpolarized the cell and it's super negative. We need to pump those ions back to where they originated. That's why we have the sodium-potassium ATPase pump. Constantly pumping along, throwing three sodium out and two potassium in. It regenerates that electrical chemical gradient. Perfect. We've now reset the neuron so it can send another action potential. Isn't that beautiful? But that is how that entire process works from start to finish, really. Now if this action potential hits the very end of a neuron called the terminal, terminal, the positive charge that's been created inside that