High blood pressure is simple to diagnose and easy to treat, yet it is the second leading cause of preventable death in the U.S.

Now, a new report from the Institute of Medicine says hypertension is responsible for one out of every six adult deaths. Our Dr. Sanjay Gupta has the report.

A shocking new Senate report concludes the Diabetes drug Avandia is linked to tens of thousands of heart attacks, and its manufacturer, GlaxoSmithKline, knew about the risks for years and kept them from the public. That report is also highly critical of the Food and Drug Administration.

Dr. Steven Nissen co-wrote a study at the Cleveland Clinic nearly three years ago tying Avandia to an increased risk of heart attack and death. He joined us on Monday's American Morning to discuss the report.

Read more: Senate report ties diabetes drug to heart attacks

The Navy is reviewing the surgery and the care it provided to the late Congressman John Murtha. Murtha had his gallbladder removed at the National Naval Medical Center in Bethesda, Maryland and died 11 days later at the age of 77.

Our own Elizabeth Cohen broke the news that surgical error was the likely cause and she joined us on Friday's American Morning with the latest in the case.

Read more: Navy to review Murtha's care

A new study says aspirin may be able to save breast cancer patients. Research shows the drug could stop breast cancer from coming back and killing women. Our Dr. Sanjay Gupta has the details of the study.