A new study has investigated the hypothesis that some accounts of hauntings could be explained by the effects of infrasound, ...

Infrasound is very low-frequency sound, below 20 Hertz (Hz), which humans typically can't hear. It can come from natural ...

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

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

2003-02-24 04:00:00 PDT Denver-- In rumbling tones far lower than the sounds that human ears can hear, a symphony of mysterious noises constantly assails the entire globe, and scientists are learning ...