Also, ignoring risk of infection, is this feasible? Will it run?
your nervous system does not use flowing electrons.
Yes. Send us a wiring diagram for your brain and will we’ll give you precise instructions.
Err… what would you hook it to? There’s no central battery, no bulk currents running through your nerves. Sure, there’s lots of electrical stuff going on, but it’s all cellular or sub-cellular scale.
But, if you had magic fairy electrodes, there is some energy available to extract. Each neuron can be thought of as a charged capacitor, with somewhere in the ballpark of 10 pF capacitance and -80 mV. Which, going from Wiki to refresh my memory of physics, gives around 30 femtojoules per cell. Multiplied by the hundred billion neurons in your brain, and you get a mere 3 millijoules total. But you would depolarize every cell in your brain, which would be a Very Bad Thing.
I know a few people for whom that would be a substantial improvement.
What if you reversed the polarity of the neuron flow?
You’d Simonize your brain pan.
All thought as you know it would stop instantly and every molecule in your brain would explode at the speed of light.
Unless you’re on a treadmill.
No. You’d probably get a stronger current impaling yourself with the potato clock electrodes.
Muscles are electrically controlled, but powered chemically.
With steroids.
What if you put the body in some sort of Matrix?
It’d get whipped, and told how naughty it had been, and how it was going to get the punishment it deserves?