People with third degree heart block have an irregular heartbeat due to a total blockage of the electrical impulses that control the heart’s activity. It can lead to faintness and breathing difficulty ...

Reentry arrhythmia occurs when electrical signals in the heart deviate from their usual path, creating a loop that causes repeated stimulation and disrupts the heart’s rhythm. Symptoms of reentry ...

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 ...

Complete heart block means that there’s a complete separation of electrical activity between the upper and lower chambers of the heart. Without prompt medical attention, it can be fatal. Your heart ...

Electrocardiologists are cardiologists who have received additional training in testing for and treating heart rhythm problems. Electrocardiologists are also known as electrophysiologists, cardiac ...

A reusable vest that can map the electric impulses of the heart in fine detail could detect abnormalities from a potentially fatal heart disease much earlier than is currently possible, a new study ...

Q. I get confused by different terms I hear used to describe serious heart events, including "heart attack" and "sudden cardiac death." Are they the same thing? A. No, they are quite different. Here's ...

Sometimes our bodies need a boost. Millions of Americans rely on pacemakers—small devices that regulate the electrical impulses of the heart in order to keep it beating smoothly. But to reduce ...

Holiday heart syndrome is a condition when a night of heavy drinking can disrupt your heart. Here’s how to treat it ...

As you read these words, billions upon billions of electrical impulses are flying through your brain. In a complex symphony of activity all those impulses are somehow encoding your thoughts, feelings, ...