A man suffering from a rare and cruel condition known as electromagnetic hypersensitivity cannot go outside his house in case he walks near a wifi network.
Peter Lloyd, 42, has been confined to a sofa in his home in St Fagans in Cardiff, and is unable to use any electrical gadgets like TVs, phones and CD players in case it causes a severe reaction.
Visitors have to leave mobile phones and watches outside and he cannot use mains electricity for heating or lighting his home � forcing him to wash with water heated on a gas cooker.