Secret Sound Waves You Can't Hear Might Be Making You Scared!

Scientists discovered that very low vibrations called infrasound [sound waves so deep your ears can't detect them] are hiding everywhere—in old buildings, traffic, and even wind. When people were exposed to these invisible vibrations, they felt scared, angry, and stressed without knowing why! This might finally explain why some buildings feel creepy or spooky, even though there are no ghosts.