Workouts are great, but what happens when your commitment to fitness pushes your body beyond its limit? It can even be deadly. For a 41-year-old fitness enthusiast from Scotland with an orange belt in karate, what began as an intense session soon spiraled into a medical emergency most gym-goers are unaware of.
After an intense karate session in March, Gemma Underwood found herself unable to get out of bed, her arms had ballooned, and her muscles were painfully swollen and tight. The real alarm came during a trip to the bathroom, when she noticed her urine had turned a dark brown shade, resembling "Coca-Cola."
