Technology

Study: Infrasound likely a key factor in alleged hauntings

admin April 27, 2026 View Original Source
Low-frequency infrasound (below 20 Hz) can raise cortisol levels in saliva and increase irritability.
Low-frequency infrasound (below 20 Hz) can raise cortisol levels in saliva and increase irritability.

This article was originally published at: https://arstechnica.com/science/2026/04/that-spooky-sensa...