Sleep paralysis

Alien abduction and the walking dead: can science explain the world's creepiest phenomena?

Science Writer Sam Kean has had real-life experiences worthy of a horror film. During one such recent episode, he woke up from a night of sleep and found that he was unable to move, completely paralyzed, but fully awake. Kean isn’t the only one who’s had such an experience. Others have had simila...

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