Fainting (syncope) is a sudden loss of consciousness caused by low blood flow to the brain. It is commonly preceeded by lightheadedness or dizziness. Some causes of fainting are low blood sugar, panic attacks, anemia, fear, and more. Follow the links below to find WebMD's comprehensive coverage about what causes fainting, how to treat it, and much more.
Why the sight of blood might make you faint – and what you can do about it.
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