Like increasing numbers of people, Mary Coales believes she suffers from electromagnetic hypersensitivity intolerance syndrome (EHS) — in other words, she thinks the electronic devices most of us rely on in our everyday lives are making her ill. EHS is not recognized as a medical condition in Britain, where she lives. She wears Aaronia Shield fabric, which protects against waves. The list of places that are off-limits to Mary Coales is extensive. The 63-year-old can’t go to theatres, restaurants, cinemas, airports, or parks. The fabric aids in protecting her from electro-magnetic waves.