03/08/2012 09:57 am ET Updated May 23, 2012

Heart Disease And Stress Tests: 'The Doctors' Explains What Happens During A Heart Stress Test (VIDEO)

As the No. 1 killer of Americans, heart disease is a major concern for many. In the above clip, cardiologist Dr. John Kennedy discusses heart health with "The Doctors" and reveals the results of co-host Dr. Drew Ordon's own heart stress test.

Dr. Kennedy explains that people with one or more of these five risk factors should consider seeing a cardiologist or internist to be monitored for heart issues: high blood pressure, high cholesterol, diabetes, smoking and family history of premature coronary disease. Your physician may run tests to assess your heart health, including a stress test.

So what exactly is a stress test? Watch the above clip to see how stress tests work and what they can reveal about your heart's health. And check out the video to see the results of Dr. Ordon's personal stress test.