Deaths from heart disease have been going down except in some parts of the country.
Researchers looked at 30 years of records from 3,000 counties.
They found from Oklahoma eastward through Kentucky, there are four times as many deaths from heart disease caused by high blood pressure, compared to parts of Minnesota, Colorado, Virginia, and Florida.
Stroke deaths are also higher.
Study leaders say improving access to quality care, and more community exercise spots could help close the gap.
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Heart disease deaths going down, except in some parts of US
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