Heart disease remains the leading cause of death worldwide, claiming millions of lives each year. Among its most devastating manifestations is cardiac arrest—a sudden, unexpected stoppage of heart ...

Cardiac arrest is a medical emergency where there's an abrupt loss of heart function and your heart is unable to pump blood. When the heart doesn't pump blood, it puts your organs and the whole body ...

Half of those who suffer cardiac arrest experience a telling symptom 24 hours before the incident, according to a study recently published in The Lancet Digital Health journal. This warning symptom ...