That is interesting Has a rotary circulatory system ever been described in a science fiction book? Seems like a novel approach and one I had not heard of before. The Ymir's (from 20 Million Miles to Earth
) system being made up of all vessels, vice any sort of heart, was always a neat concept.
Wonder if it's shielded or if he has to avoid strong magnets in everyday life, like pacemaker recipients used to be cautioned to avoid microwave ovens and other devices.
This is what finally kills off Donald in Microwave Massacre.