I've seen stories that address that by positing that it turns out that our intuitive understanding of ourselves as fundamentally "simple" entities is in fact correct, and the electricity our neurons used was just an epiphenomenon based on our local conditions. If you physically move your body into another location, suddenly those rules will work on you, and lo, you really will be running on the 4 humors, or whatever other theory is in play.
Electricity suddenly stops working.