As many as one in 10 Americans who has a heart attack may also have undiagnosed diabetes, a new study finds.

“Diagnosing diabetes in patients who have had a heart attack is important because of the role diabetes plays in heart disease,” lead author Dr. Suzanne Arnold, assistant professor at Saint Luke’s Mid America Heart Institute and the University of Missouri at Kansas City, said in an American Heart Association (AHA) news release. Read more.