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 ...

As we continue to traverse the digital age, countless technological advancements have been made, including in the realm of medicine. Unfortunately, one unexpected and alarming consequence is the ...

For the tiniest infants born with heart defects, a pacemaker the size of a pill now provides hope to families who are dealing with the problem. NBC News' Yamiche ...