‘It brought me to my knees’: The Hum – a mysterious phenomenon that’s baffled the world for decades

‘It brought me to my knees’: The Hum – a mysterious phenomenon that’s baffled the world for decades - IN FOCUS: It’s thought that 4 per cent of the global population is plagued by a persistent, rumbling sound in their ears – the source of which is a total enigma. Ellie Harrison speaks to the people who’ve been trying to get to the bottom of a noise that has been wreaking havoc for many years