the cells in the body receive information from your environment and react. but the information has to get through the wall of the cell somehow.
prescription drugs and food act like a physical lock and key mechanism, opening the door of the cell, transmitting the chemical signal and triggering a result from the nucleus of the cell who gets to work. but pemf acts like one of those wireless beep beeps that opens your garage or your car door . the information gets through the walls and goes in and the inside responds. the door opens, regardless of whether you use a physical key (biochemistry), or a wireless key (pemf).