Add Yahoo as a preferred source to see more of our stories on Google. Varsity rower Ruth McDonald knows there's always a risk of having a medical emergency, like a sudden cardiac arrest, as she rows.

One might think the two are one in the same, but that is far from the case.

Though the terms “cardiac arrest” and “heart attack” are often used interchangeably, they are separate diagnoses and mean different things. But both are life-threatening emergencies that require ...

Each year, cardiac arrest strikes more than half a million people and contributes to avoidable death and disability across the United States; it affects seemingly healthy individuals of all ages, ...

Cardiac arrest is defined as a sudden stop in heart function. Essentially, the pumping function of the heart is compromised, oftentimes due to a dangerous malfunction of the heart's electrical system.

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...