Why cant we feel RF burns?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: d a <btoc3000@xxxxxxxxxxxx>


I quote this from a website I came across:

Burns: Due to the high frequencies involved, Tesla coils can cause 
severe burns without the sensation of pain. These burns are typically 
very deep and need long term medical attention.

Does it mean that RF (because of the high frequencies), can induce 
the current to flow along the blood vessels without flowing along the 
membranes. As such, we wont be able to feel the pain because the 
nerve cells, etc are located along the membranes and not inside any 
blood vessels...

Is it only RF current can be able to flow in the inner parts of the 
body without flowing along the membranes (exterior) first? If so, how 
is that possible? Do we just take it for granted that RF current has 
this special property of allowing the current to flow in the inner 
parts w/o any flowing along the exterior?

Thanks
Sam