A dream is a recollection of subjective experiences that happen during rapid-eye-movement (REM) sleep. On the other hand, nightmares are markedly dysphoric dreams with intense negative emotions which ...

Disrupted sleep is the fuel that keeps the fire of chronic pain roaring. Dreams, sometimes of the frightening variety, can keep us from a sound sleep. But there are other terrors lurking in the dark ...

Vivid, upsetting nightmares happen sometimes. When they occur regularly and affect your ability to sleep or function, you may have a nightmare disorder. Sleep therapy, medications, and desensitization ...