Near-death experiences can range from intense to peaceful to as if you were floating in space. However, no matter what the experience, near-death experiences often alter the body's sleep patterns in some way.

Sleep paralysis is a condition in which a person is unable to move or speak while remaining conscious. This syndrome frightens many people and is the basis for many mysterious and ghostly stories. Do you really understand sleep paralysis? Take the 9 multiple choice questions below to better understand this “scary” syndrome.