Turns out not all of it relates to the paranormal. 2 min read Apr 29, 2026 06:15 AM IST First published on: Apr 29, 2026 at 06:15 AM IST The house is quiet, but never quite silent. In the small hours, when the world outside has fallen silent, it seems to acquire a secret life of its own. Shadows deepen, floorboards creak unexpectedly. The air acquires a watchfulness, as if someone is lingering just beyond the closed door, waiting to be let in. Recall the oppressive interiors of The Haunting of Hill House, or the slow, encroaching dread of The Turn of the Screw: For years and years, this unease — and the conviction that one is not alone — has come to define the imagination of the the uncanny or the supernatural. Turns out not all of it relates to the paranormal. Recent research by psychologists at MacEwan University in Canada, published in Frontiers in Behavioural Neuroscience, suggests that such atmospheres may be engineered not by spirits but by sound too low to be audible to the naked ear.…