Are Ghosts Real? Science Says No-o-o-o

If you believe in ghosts, you're not alone: A 2005 Gallup poll found that 37 percent of Americans believe in haunted houses, and about one-third believe in ghosts. Tens of thousands of people around the world actively search for ghosts as a hobby. Researcher Sharon Hill of the Doubtful Newsblog counted about 2,000 active amateur ghost-hunting groups in America.

  

Ghosts have been a popular subject for millennia, appearing in countless stories, from "Macbeth" to the Bible, and even spawning their own folklore genre: ghost stories. Ghosts are perhaps the most common paranormal belief in the world. Part of the reason is that belief in ghosts is part of a larger web of related paranormal beliefs, including near-death experience, life after death, and spirit communication.

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