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FRIDAY, Feb. 27 (HealthDay News) -- If you knew you were having a stroke, you'd seek immediate medical attention. But what if your symptoms were mild or ambiguous?
Even people who experience vague symptoms of a stroke suffer mental and physical damage that diminishes their quality of life, researchers have found.
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The implicit message? Don't wait for the worst to happen before reacting. Mild, short-lived or sporadic symptoms of a brain attack should be enough to send up a red flag.
"I would suggest that people with stroke symptoms rush to the doctor," said George Howard, professor and chair of biostatistics at the University of Alabama at Birmingham School of Public Health.
Stroke -- the third-leading cause of death in the United States, behind heart disease and cancer -- occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts. When that happens, part of the brain can't get the oxygen it needs and starts to die, according to the American Stroke Association.
Strokes can also be disabling, affecting speech, memory and movement. Some 4 million Americans are living with the effects of stroke, says the National Institute of Neurological Disorders and Stroke.
What's more, it's estimated that as many as 10 million Americans have strokes without ever knowing it. These have been dubbed "silent strokes."
But what if silent strokes aren't as clandestine as experts think? Howard and his colleagues have proposed that some people with silent strokes actually do experience the effects of a stroke, even though the warnings signs escape diagnosis. He calls these "whispering strokes."
"A silent stroke is one that shows up on imaging without a clinical diagnosis. A whispering one is one that has symptoms without clinical diagnosis," he explained.
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