Human body, as a whole, exhibits a frequency-dependent rate of absorbing electromagnetic energy. The maximum absorption of the electromagnetic field occurs at the whole-body resonance, i.e. when the height of a human body is comparable with a radio wave’s wavelength, in which the human body behaves almost like an antenna and absorbs an even greater amount of radio waves. Depending on height and surrounding conditions, whole-body resonance is known to occur within the frequency range of 30 MHz to 300 MHz.