My 15 year old daughter says she wakes up and can't move or speak. What causes this terrifying condition?
Sleep paralysis is actually a mildly defective awakening from REM (dream) sleep. The body is normally paralyzed while dreaming so that you do not literally run when you dream that you run, or jump when you dream that you are doing that. Sometimes consciousness happens before motor tone is restored. The problem usually ages away as children get older.