Cellular telephone radiation and electroencephalograms (EEG) of the human brain

Reports from several laboratories suggest that microwave radiation from cellular telephones could modify certain brain electrical activity under both awake and sleep conditions. However, the results were inconsistent. In particular, results of two series of studies from two different laboratories were most intriguing. A series of reports from one laboratory gave conflicting results on the influence of microwave radiation from cellular telephones on human EEG activity. In contrast, results from another laboratory not only extended their earlier findings that electromagnetic radiation from cellular telephones can affect human EEG activity, but suggested that pulsemodulated microwaves from cellular phones may promote sleep and modify human brain electrical activity.