sham exposure it is important to note that the sham was also emitting rf radiation at a lower level and that the reaction of participants to the sham exposure may also be related to emfs i have no idea of the scientific consensus on this but i've moved it from the article because of a editorialising it is important to note and b unreliable sourcing it just dips into bmj rapid responses which is no more than an online letters page to a post by a person of unknown credentials