My lecture mentioned that acidosis causes a decrease in neuronal excitibility while alkalosis causes an increase in neuronal excitibilty, however the mechanism of how this happens was not explained.
I tried googling and discovered [this answer](https://www.quora.com/Why-does-excitability-increase-in-alkalosis-and-decrease-in-acidosis?share=1)
However this “answer” raises more questions than it answers. For example, what is the mechanism by which alkalosis cause hypokalemia? and if there’s hypokalemia this will cause hyperpolarization which actually should **decrease** not increase excitibilty so how is this explained?