In the TV series Better Call Saul, Saul’s brother Chuck believes that electromagnetic signals from mobile phones and other devices make him seriously ill. He lives as a recluse and uses a foil blanket to protect himself. By some estimates, millions of people – around 5 per cent of the population – believe that they too suffer from “electrosensitivity” or “electromagnetic hypersensitivity”.
Though they may not suffer as much as Chuck, these individuals claim that wi-fi and other signals make them ill, triggering headaches and other symptoms.
The medical consensus based on double-blind trials (in which neither researcher nor test subject knows when a test device is real or pretend) is that while the experience of electrosensitivity-related symptoms may be real, they are not caused by electromagnetic fields.
More likely is that the symptoms arise from a “nocebebo effect” – a strong belief that the fields are harmful.
Read more on our Research Digest blog.