Pain is always disconcerting regardless of where it occurs, but it can be especially worrisome if it emanates from the left side of the body, where vital organs like the heart are located. The good ...

A sigmoid septum occurs when part of the heart muscle expands and blocks a pathway blood uses to leave the heart’s left side. It often does not cause symptoms and has links to aging. The heart ...

Learn about common causes of pain under the left rib cage, like heart, lung, and gut issues, and find out when to see a doctor.

Tom Derrington, 65, was increasingly having trouble walking up the four flights of stairs on the CapMetro construction site where he works. He was out of breath. His feet were so swollen they hurt on ...