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 ...

A pacemaker is a small, battery-powered device that controls the heartbeat. Our heartbeats are controlled by a highly efficient, biological electrical system that ensures our heart steadily pumps ...

Actor Arnold Schwarzenegger revealed he had a pacemaker installed to treat an irregular heartbeat. He was born with a bicuspid aortic heart valve, which can make the heart work much harder than it ...

Millions of people worldwide live with a pacemaker that regulates their heartbeat, but exactly what are these devices and how do they work? Pacemakers can save the lives of heart patients by ...