Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

Understand how defibrillators work to restart the human heart.

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 ...