The Effects of 884 MHz GSM Wireless Communication Signals on Self-reported Symptom and Sleep (EEG)- An Experimental Provocation Study
Bengt B. Arnetz, Torbjorn Akerstedt, Lena Hillert, Arne Lowden, Niels Kuster, and Clairy Wiholm
....The study indicates that during laboratory exposure to 884 MHz wireless signals, components of sleep, believed to be important for recovery from daily wear and tear, are adversely affected. Moreover, participants that otherwise have no self-reported symptoms related to mobile phone use, appear to have more headaches during actual radiofrequency exposure as compared to sham exposure. However, subjects were not able to detect the true exposure status more often than would have been expected by statistical chance alone....
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http://piers.mit.edu/piersonline/piers.php?volume=3&number=7&page=1148