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WebMD

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WebMD and our medical team bring you the most trustworthy and timely health news and information.

calendar_today23-03-2009 01:43:59

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2 weeks ago

Have you ever wondered what causes nightmares? They happen during REM sleep — the stage when your brain is working almost as hard as when you’re awake — and they’re more than just “bad dreams.” wb.md/4av48jw

Have you ever wondered what causes nightmares? They happen during REM sleep — the stage when your brain is working almost as hard as when you’re awake — and they’re more than just “bad dreams.” wb.md/4av48jw
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