Fat is a dielectric (electrical insulator). Fatty tissues contain a higher volume fraction of dielectric (fat) than do muscles, nerves, etc., which are mostly f

Fat is a dielectric (electrical insulator). Fatty tissues contain a higher volume fraction of dielectric (fat) than do muscles, nerves, etc., which are mostly full of aqueous electrolyte solutions (Na+, K,+, Ca++) which are good electrical conductors.