Infrasound Fuels 'Haunted' Atmospheres

Low‑frequency sound (below ~20 Hz) common in aging buildings — from pipes, ventilation, or nearby traffic — can raise cortisol and increase irritability without conscious detection. That low‑grade aversion changes how people evaluate environments and can produce the vague 'haunted' vibe long attributed to ghosts or superstition. — This reframes many paranormal claims as a predictable environmental and public‑health issue, with implications for building maintenance, urban planning, and how media and courts treat 'atmosphere' evidence.