Double-blind, controlled studies have repeatedly shown that electro-sensitives can't tell the difference between genuine and sham electro-magnetic fields (EMFs).1, 2 For example, a research team in Norway (2007) conducted tests using sixty-five pairs of sham and mobile phone radio frequency (RF) exposures. "The increase in pain or discomfort in RF sessions was 10.1 and in sham sessions 12.6 (P = 0.30). Changes in heart rate or blood pressure were not related to the type of exposure (P: 0.30–0.88). The study gave no evidence that RF fields from mobile phones cause head pain or discomfort or influence physiological variables. The most likely reason for the symptoms is a nocebo effect."
http://www.skepdic.c...sensitives.html
(Nocebo effect: A nocebo (Latin for "I will harm") is something that should be ineffective but which causes symptoms of ill health. A nocebo effect is an ill effect caused by the suggestion or belief that something is harmful.)