Heart racing suddenly during a workout or at rest? It may not be anxiety. Doctors explain SVT, its triggers, and when to seek medical help. (Pic credit: Pexels) SVT causes sudden rapid heart rate over ...

CARMEL, Ind. — Ever since Addyson Czarnecki first jumped in at eight years old, the pool has been her happy place. "I really love the feeling of when your body is so tired that your lungs are burning, ...