Wi-Fi and the scare that won’t die

Very probably not, says Tom Chivers, but the symptoms of people who believe that it is are perfectly real

22 Oct 2015
Placebo pills: safe only insofar as they contain no active substance

A little goes a long way, that’s if it works at all

Homeopathy divides people into those who are credulous enough to believe in it and everyone else, says Professor Edzard Ernst