A method for covertly creating adverse health effects in a human subject includes generating at least one electromagnetic wave at a frequency within the range of about 300 MHz (megahertz) and about 300 GHz (gigahertz). The at least one electromagnetic energy wave is pulsed at a pulse frequency within a target range of human neural oscillations. At least one ultrasonic audio wave is generated at a frequency greater than about 20 kHz (kilohertz). The at least one audio wave is pulsed at the pulse frequency. Each of the at least one pulsed electromagnetic wave and the at least one ultrasonic audio wave are remotely transmitted to the subject's brain.