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  1. What Exactly Is a Fainting Spell? - Cleveland Clinic Health ...

    Oct 8, 2020 · Although rare, fainting can be a precursor of a life-threatening illness, like a heart disorder. That’s why patients who suffer fainting spells should be evaluated promptly by a physician. The most …

  2. Fainting: What It Feels Like and What Causes It - WebMD

    Jul 10, 2024 · Various conditions can trigger fainting, ranging from mild to serious. These include heart irregularities, low blood sugar, anemia, and nervous system issues that affect blood pressure regulation.

  3. Fainting: Causes, Types, and Prevention - Healthline

    Jul 3, 2023 · Fainting happens when you lose consciousness for a short amount of time because your brain isn’t getting enough oxygen. The medical term for fainting is syncope, but it’s more commonly …

  4. Understanding Fainting and Whether It's Dangerous

    Dec 5, 2025 · Fainting, or syncope, often results from a temporary decline in blood flow to the brain. It's usually not serious, but it can signal underlying health issues ranging from dehydration to heart …

  5. What Causes Fainting (Syncope) Spells? - eMedicineHealth

    Heart problems, stress, environmental situations, neurological problems, migraine, and medications can cause fainting or syncope. Seeing spots before your eyes, paleness, sweating, and feeling …

  6. How to Deal With Fainting Spells: 11 Steps (with Pictures)

    Jun 5, 2025 · Fainting, or syncope (pronounced SIN-ko-pee), is a sudden loss of consciousness that is typically caused by a drop in blood flow to the brain (vasovagal syncope). There are a number of …

  7. Syncope (Fainting) - Johns Hopkins Medicine

    Syncope (SINK-a-pee) is another word for fainting or passing out. Someone is considered to have syncope if they become unconscious and go limp, then soon recover. For most people, syncope …

  8. Fainting (Syncope): Causes, Symptoms, Treatment, Prevention

    Fainting, passing out, blacking out, or syncope is the temporary loss of consciousness caused by a variety of situations such as vasovagal syncope, low blood pressure, and anemia. Learn about …

  9. Fainting Spells and Passing Out: Quick Facts | U.S. News

    May 3, 2022 · Fainting, or syncope, by definition means there's a transient loss of consciousness. It's usually caused by a brief drop in blood pressure, which prevents sufficient blood flow to your brain,...

  10. Syncope (Fainting): Types, Symptoms & Causes - Cleveland Clinic

    Because fainting spells can be a sign of a more serious condition, it’s important to get treatment right away. Most people can prevent problems with syncope once they get an accurate diagnosis and …