Does potassium help with nerve function?

Answer 1

both Potassium and Sodium are necessary for nerves to function because the action of a nerve impulse travelling along a nerve axon involves a successive moving of na and k ions between the inside and outside of the axon. When a nerve impulse is initially triggered by a summation of voltages from the input dendrites, na and K ions are caused to switch places at one small area of the beginning of the axon which accomplishes a small voltage there. That voltage causes the same thing to happen just next to that site and so on down the length of the axon. As this impulse travels along the axon, the previous switching reverses back to the normal state ready for another impulse to fire. This is similar to a line of dominos knocking each next one down, except that each one stands back up after knocking the next one down. That's approximetely how a nerve cell works to send impulses. But if your question is something like do I need to take potassium supplements then that's something you would have to ask a doctor.