Researchers at Northwestern University just found a way to make a temporary pacemaker that’s controlled by light—and it’s smaller than a grain of rice. A study on the new device, published last week ...

A pacemaker may be useful for atrial fibrillation (AFib) involving a slow heart rate or other heart conduction disorders. However, doctors may recommend lifestyle changes to manage AFib before a ...

Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...

Add Yahoo as a preferred source to see more of our stories on Google. Roughly one percent of infants are born with heart defects every year. The majority of these cases only require a temporary ...

Northwestern University engineers have developed a pacemaker so tiny that it can fit inside the tip of a syringe—and be noninvasively injected into the body. Although it can work with hearts of all ...

The heart may be small, but its rhythm powers life. When something throws that rhythm off—especially after surgery—it can become a race against time to restore balance. For decades, doctors have ...

The tiny pacemaker sits next to a single grain of rice on a fingertip. The device is so small that it can be non-invasively injected into the body via a syringe. Northwestern University engineers have ...

The pacemaker is being reinvented. Originally, it was developed to remedy heart rhythm irregularities by use of electrical stimulation. The first pacemaker was implanted 66 years ago, in 1958. About ...

Chinese scientists have achieved an important medical breakthrough by creating the world’s first laboratory-grown sinoatrial node, often called the heart’s master conductor. This tiny part of the ...

A laboratory error in 1956 by engineer Wilson Greatbatch led to a groundbreaking medical invention. While attempting to build ...

The pacemaker is being reinvented. Originally, it was developed to remedy heart rhythm irregularities by use of electrical stimulation. The first pacemaker was implanted 66 years ago, in 1958. About ...

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 ...