TLDR
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Infrasound (sub-20Hz vibrations) produced by old structures may trigger unease, dread, or presence sensations mistaken for hauntings.
Key Takeaways
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Infrasound sits below human hearing thresholds but can resonate with eyeballs and organs, causing visual disturbances and anxiety.
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Old buildings with large cavities, loose windows, or HVAC systems are natural infrasound generators under wind or mechanical load.
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The “haunted” feeling is likely a physiological response to standing waves, not imagination or suggestion.
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Researchers including Vic Tandy have linked specific 18.98Hz frequencies to reported paranormal experiences in labs and old buildings.
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