Learn why your heartbeat races after climbing stairs. A cardiologist explains what's normal, the impact of lifestyle, and ...

Knowing how to spot the symptoms of cardiac arrest or a heart attack and what to do could save someone's life.

The parents of a three-week-old baby have told how they were warned to prepare for the worst after their daughter’s heart started beating 300 times a minute. Jack and Chloe Giles, from Dover, rushed ...