Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...

Defibrillators are life-saving devices designed to restore the heart’s normal rhythm during sudden cardiac arrest. They are widely available in schools, airports, gyms, and public spaces - but despite ...

Few medical therapies pose the issue of how to avoid sudden cardiac death as starkly as does the implantable cardioverter defibrillator — a device that is implanted like a pacemaker, which has been ...