What Causes Ghosts? Scientists Say They’ve Found the Answer

A house can feel haunted before anything actually appears. A cold room, a low rumble, a bad feeling, and the mind starts building a story.

Now scientists think one invisible force may be helping that story feel real. The answer is not a ghost hiding in the walls. It may be infrasound — sound waves too low for humans to hear, but strong enough for the body to notice.

New research suggests these hidden vibrations can make people feel uneasy, stressed, and more likely to interpret a place as haunted.