Just days after celebrating his birthday in Ibiza, Chris Hemsworth shared a new workout video on Instagram. The actor can be seen powering through an intense boxing session with his trainer. Chris ...

A woman was hospitalized with a severe reaction to working out that caused her muscles to balloon and her urine to turn dark. Gemma Underwood, 41, is an orange belt in karate, and said she felt sore ...

Pre-workout nutrition, workout prep—whatever you call it—has changed, and what you consume in the hours before exercise ...