Heart Photo (IMAGE) Intermountain Healthcare Caption A new study by researchers at Intermountain Healthcare in Salt Lake City finds that patients without standard modifiable heart risk factors who experience a heart attack are common and more likely to fare better than heart-attack patients with known risk factors, but researchers say it remains difficult to identify those at risk for an event before it happens. Credit Intermountain Healthcare Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.