Insulating ourselves to death?

I recently had the pleasure of hosting Barefoot Ted here in SF.

While we didn’t get to discuss this topic while he was here, I’ve been thinking about it since, and figured I’d share these thoughts, and see what everyone out in the web-world thinks…

I ordered some leather huaraches from Ted’s site, and was pondering my choice of leather over the Vibram rubber soles that he offers, and that I think he (and many others) prefer to the leather.

I was thinking more about the leather/rubber debate, and started to think about these things:
leather is a natural material, and is not much of an insulator…especially compared to
rubber, which is a powerful insulator.
(I’ll refrain from the “production” debate for these materials here)
our blood contains hemoglobin, which has at its center an atom of iron (in the heme)
iron responds to electromagnetic charges.
the earth is a giant electromagnet (its core is partly iron)
when we stand on the earth, we receive that electromagnetic flow through our blood (iron).

further…
polarity therapy” in massage says that one side of the body is positively charged, and the other negatively charged
if that’s the case, when we move on two (bare) feet, we alternately contact the electromagnetic field of the earth with our oppositely-charged sides, creating a current through our body
when we run, that current is even more divided (a true “alternating current”), since we completely separate contact with one side for a period in a running-gait.

further still…
bone forms along lines of stress
that’s because bone is piezoelectric
that is, the lines of stress cause an electric charge to flow through bone
that electric flow is what directs the osteoblasts to break down the bone in places, and the osteoclasts to build in other places.

and…
though the “proof” is controversial, man-made electromagnetic fields are known to disturb natural bodily functions, for instance
high-tension power lines may be related to an increased risk in cancer
microwave ovens can have effects on people
the electrical impulse through natural stone walls has been linked by some to the presence of “ghosts” (as electromagnetic hallucinations)
etc.

final questions:
what happens when we insulate our bodies from the earth’s electromagnetic field
what happens when we don’t…