This assumes that the body is magnetically conducting. The article implies this, too, with the statements about increased privacy and the claim of employing the body as a communication medium (versus simply having it transparent, which would still be better than its absorption of waves in the GHz range). Can anyone point out numbers and the involved mechanisms? I&#x27;d say for static fields the only mechanism would be the iron in the blood, and for dynamic fields possibly the conductivity through ions, but I&#x27;m unsure if the latter would even help, as electric conductivity is something that designers usually try to <i>avoid</i> in magnetic cores.