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Mysterious Global 'Hum' May Be a New Form of Tinnitus

(Yurii Yarema/Creatas Video+/Getty Images Plus) For decades, some people around the world have reported hearing a strange, ...

The Mystery of the "Global Hum," the Droning Sound Reported By Thousands

Experts aren't positive why some people hear a humming noise that never ceases. However, new research may offer an ...