VIERA, Fla. - An MRI taken yesterday afternoon has revealed that Nationals reliever Ryan Mattheus has costochondritis, which is inflammation of the cartilage that attaches the ribs to the breastbone.

Muscle strains, chronic pain conditions, arthritis, or rib injuries may all cause musculoskeletal chest pain. Musculoskeletal chest pain is pain relating to the muscles, tissues, and bones in the ...

Chest pain following pull-ups can stem from several causes, some of which are serious and others that should respond to simple care at home. It may indicate a muscle pull or spasm. However, it's not ...

Why do our ankles swell when they’re sprained or does our skin turn red — or inflamed — when it’s scraped? Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive ...

About a month after hunkering indoors after the start of the COVID-19 pandemic, I picked up some dumbbells and did a simple workout in my boyfriend’s parents’ living room, in true pandemic fashion.

Heart inflammation, or carditis, can affect the heart muscle, its lining, or the surrounding sac, and often follows infections. Symptoms range from chest pain and fatigue to more subtle signs, making ...

A chest infection is a common respiratory condition that affects the lungs or airways, making it difficult to breathe ...

Chest pain can indicate an injury to your ribcage, surrounding muscles, or connective tissue. Pulled muscles, fractured ribs, and arthritis are all potential causes. Your musculoskeletal system ...