Research shows why certain arterial plaques can turn deadly

A common misconception about arterial plaque is that it inevitably leads to a heart attack or a stroke. New research at Columbia University Medical Center, however, sheds light on why so few plaques in any given individual ...

Report: Most Americans in areas with unhealthy air

(AP) -- Sixty percent of Americans live in areas with unhealthy air pollution levels, despite a growing green movement and more stringent laws aimed at improving air quality, the American Lung Association said in a report ...

Heart attacks: The tipping point

Twenty percent of American deaths each year are caused by heart attack or angina, sometimes without any warning.

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