Skip to 0:53 seconds for the first aid steps. An AED is a portable machine that can shock the heart back into normal rhythm. You can find them in many public places, such as train stations, shopping ...

One in three people worldwide will develop a potentially life-threatening heart rhythm disorder in their lifetime, yet ...

This ectopic focus becomes the predominant pacemaker of the heart. When the atrial rate is greater than 100 beats per minute, the rhythm is atrial tachycardia. If less than 100 beats per minute ...