Waking up unable to move can be very scary. The medical term "sleep paralysis" may frighten you more. But sleep paralysis is really not all that complicated: Simply put, your mind wakes up before the ...

There are a few ways to prevent the “extremely frightening” sleep phenomenon, though.

Add Yahoo as a preferred source to see more of our stories on Google. Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." - Illustration by ...