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  1. Nightmare - Wikipedia

    A nightmare, also known as a bad dream, [1] is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety, disgust or sadness. …

  2. Why We Have Nightmares (And How to Prevent Them)

    May 2, 2024 · Knowing the differences between bad dreams, nightmares, and nightmare disorder is a first step to addressing the causes of nightmares, starting appropriate treatment, and …

  3. 7 Reasons You’re Having Nightmares

    May 22, 2024 · A sleep psychologist explains why nightmares happen and shares tips that will help you stop living out Metallica’s iconic song, “Enter, Sandman,” so you can start getting a …

  4. Nightmare disorder - Symptoms and causes - Mayo Clinic

    Jun 5, 2021 · A nightmare is a disturbing dream associated with negative feelings, such as anxiety or fear that awakens you. Nightmares are common in children but can happen at any age.

  5. NIGHTMARE Definition & Meaning - Merriam-Webster

    Because it was believed to come in the night, it later became known in Middle English as a nightmare. It was not until the 16th century that the word nightmare came to mean "a …

  6. Adult Nightmares: Causes and Treatments - WebMD

    May 1, 2025 · When you wake up terrified from a disturbing nightmare, you might think you're the only adult who has them. After all, aren't adults supposed to outgrow nightmares?

  7. Nightmares - Psychology Today

    Apr 26, 2022 · A nightmare, if one occurs at all, usually takes place in the later hours of REM, or rapid eye movement, sleep. A dreamer often awakens with a solid general recollection of the …

  8. Nightmare | Definition, Causes, Prevention, & Facts | Britannica

    nightmare, disturbing dream that provokes a strong negative emotional reaction. Nightmares differ from other dreams in that they typically cause the sleeper to awaken because of emotional …

  9. NIGHTMARE | definition in the Cambridge English Dictionary

    NIGHTMARE meaning: 1. a very upsetting or frightening dream: 2. an extremely unpleasant event or experience or…. Learn more.

  10. Nightmares: Causes, Bad Dreams Signs, Warnings & Treatment

    Talking about the nightmare during the day. Comforting and reassuring the child. Encouraging the child to go back to sleep in their bed. Avoiding bright lights in the bedroom, and using a night …