The purpose of this study is to investigate the possible annoyance from very low intensity electromagnetic radiation, as it exists from modern antenna masts supporting mobile communication. Also we try to get a better understanding of the specific parts of the signal leading to symptoms. This investigation tries to clarify the risk for both adults and adolescents, other susceptibility factors, and whether the radiation changes cognitive functions. The above mentioned complaints have been related to psychological distress and somatization, and EMF-related complaints have been reported more by individuals with higher somatization tendency. In the present study, we therefore propose to control for symptoms of somatization and personality traits thought to influence perception and reporting of symptoms.