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WASHINGTON (AP) - A seizure is like a little storm in the brain's electrical system, and the resulting symptoms can range from a few minutes' blank stare to a full-scale collapse and loss of consciousness.
It's not all that rare for a usually healthy person to have a seizure, although they're far more common during childhood than adulthood.
When one happens, doctors do a battery of tests to make sure there's no sinister explanation. A test that measures brain waves, called an EEG, can confirm a seizure by detecting a telltale spike. A brain scan called an MRI can detect a tumor, stroke or congenital abnormality.
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