Then, 50,000 Americans lose their lives each year to thoracic aortic aneurysms. On this week's Mayo Clinic Q&A segment, Dr. Gabor Bagameri, a Mayo Clinic cardiovascular surgeon explains what you need to know about this silent killer.

And, do you simply pay a healthcare bill when it arrives? We'll talk to Marshall Allen, author of “Never Pay the First Bill: And Other Ways to Fight the Health Care System and Win,” who will explain why and how smart consumers should carefully check those bills for inaccurate or unfair charges.