Poltergeists: Noisy Spirits

A poltergeist is perhaps the best-known — and most feared — type of ghost. It is a spirit that is said to harass and torment its victims. This harassment typically includes minor but mysterious and disturbing events such as loud sounds, moving furniture, sheets and covers being pulled off beds, small objects inexplicably falling off shelves, stones rising off the ground and being hurled at people, and so on. 

Of course, discussing different categories of ghosts is like discussing different breeds of dragons or races of leprechauns: it's all made up, so there are as many types as you can dream of. Nevertheless, people all over the world believe in ghosts and spirits, and a 2005 Gallup poll found that 37 percent of Americans believe in haunted houses — and nearly half believe in ghosts.

Latest Videos From
Benjamin Radford
Live Science Contributor
Benjamin Radford is the Bad Science columnist for Live Science. He covers pseudoscience, psychology, urban legends and the science behind "unexplained" or mysterious phenomenon. Ben has a master's degree in education and a bachelor's degree in psychology. He is deputy editor of Skeptical Inquirer science magazine and has written, edited or contributed to more than 20 books, including "Scientific Paranormal Investigation: How to Solve Unexplained Mysteries," "Tracking the Chupacabra: The Vampire Beast in Fact, Fiction, and Folklore" and “Investigating Ghosts: The Scientific Search for Spirits,” out in fall 2017. His website is www.BenjaminRadford.com.