As the No. 1 killer of men and women, cardiovascular disease takes a life nearly every minute of every day, according to the American Heart Association.
And, in any given year, approximately 20 million people suffered from some form of heart disease according to the group. But how can one know they are in the midst of a serious heart-related medical problem? Varied types of heart tests now proliferate, but do they all bring the same result?
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