We've all seen or heard people who claim that electromagnetic radiation has negative health effects. I decided to look into the scientific literature to see whether the claims are true and if yes what health effects one could expect. The search is a preliminary one so it will not be particularly structured. As a start, Wikipedia makes an interesting claim on the non-ionizing radiation page. The article writes that: > Non-ionizing (or non-ionising) radiation refers to any type of electromagnet...