Do you sometimes notice a deep buzzing or humming noise that seems to have no identifiable source? If so, you may be among the estimated 2-4 percent of people worldwide who experience this unusual sound. Researchers have spent decades trying to determine where it originates.
For some, the noise is irritating but manageable. For others, the low-frequency sound can cause physical discomfort or illness and may also feel like a vibration moving through the body.
The hum can be difficult to detect outdoors. It is more commonly noticed inside buildings, especially at night when people are trying to sleep. Someone may look outside for a nearby engine or machine, only to find nothing that could explain the noise.
Even more puzzling, other people in the same room may hear nothing at all.
Reports of The Hum Begin in England
