Many conditions can cause pain in the sternum, including injuries, pneumonia, bronchitis, and costochondritis. Gastrointestinal problems, such as acid reflux, can cause pain behind the sternum. People ...

Inspired by this thread, http://episteme.arstechnica.com/eve/forums/a/tpc/f/34709834/m/532009338831, I decided to see what joints everyone here can pop.<BR><BR>I can ...

Your sternum is located in the middle of your chest and is also known as the breastbone. It protects the organs of your torso from injury and serves as a connection point for other bones and muscles.