drewmoney notes a BBC article on a major UK study of whether cell towers (or "mobile phone masts" as they are called in the UK) cause illness. The study concluded strongly that symptoms of illness caused by mobile phone masts are all in the mind. People claiming sensitivity to radio emissions showed more symptoms in trials, according to the article, whether signals were being emitted or not. Quoting: "Dozens of people who believed the masts triggered symptoms such as anxiety, nausea and tiredness could not detect if signals were on or off in trials. However, the Environmental Health Perspectives study stressed people were nonetheless suffering 'real symptoms.' Campaign group Mast Sanity said the results were skewed as 12 people in the trials dropped out because of illness."