Very low-frequency sounds, which humans cannot hear but can lead to high stress hormone levels in the body, could be an ...

New research uncovers a possible cause for feelings linked to paranormal activity: sound too low to hear that still stresses ...

Scientists have long sought to find logical explanations for alleged hauntings. In 2003, for instance, University of ...

A recent study suggests that infrasound, a low-frequency vibration undetectable by human ears, may cause the eerie feelings associated with haunted or old buildings.

Haunted, spooky feelings may come from odd sound frequencies.

Inaudible infrasound from old pipes and ventilation systems may affect how people feel, research indicates ...

A new study in *Frontiers in Behavioral Neuroscience* suggests that infrasound—low-frequency noise below human hearing—can elevate stress hormones and cause discomfort, potentially explaining why some ...

Infrasound—noise below the range of typical human hearing—from power, heating and mechanical systems within buildings can ...

Researchers have found that people exposed to infrasound feel more irritated and stressed, even when unaware of its presence.

A new study suggests that infrasound, a low-frequency vibration inaudible to the human ear, may be responsible for the ...

Hz infrasound, though inaudible, spikes cortisol and triggers irritability, explaining "supernatural" feelings in old buildings.