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 ...

The S3 heart sound occurs as the mitral valve opens and allows blood to fill the left ventricle passively. The sound happens as a result of blood striking the left ventricle during early diastole. An ...

Dr. Richard Page answers the question: 'What Causes Defibrillator To Fire?' — -- Question: What kind of heart rhythm problems will cause my defibrillator to fire? Answer: Your defibrillator is ...

Dr. Richard Page answers the question: 'Are There Defibrillators Without Leads?' — -- Question: I have heard that some defibrillators may not need leads to be placed in the heart. Is this true, ...

CHICAGO -- It sounds futuristic: drones carrying heart defibrillators swooping in to help bystanders revive people stricken by cardiac arrest. Researchers tested the idea and found drones arrived at ...

There have been several cases involving young athletes whose hearts suddenly stop beating while playing sports. Many of those cases involve a specific heart condition that puts young people at risk of ...