The noise caused by every-day electrical supply wiring in common electrical devices and household appliances can be dangerous for human health claims Canadian researcher Dr. Magda Havas from Trent University. People who are “electrically hypersensitive” can suffer from headaches, fatigue, depression, body aches, memory loss, insomnia, anxiety and others. A device for filtering dirty electricity from electrical wiring found in homes, schools and offices is available now in the EU.