An underlying heart condition. Although most extra beats are harmless and easily fixed, beware of premature beats that occur frequently, double up, or beat three times in a row at a fast rhythm ...

Is your heart racing because you’re in love or is it a sign of a more serious heart condition? A cardiologist explains how to spot the difference.

An out-of-sync electrical system in the heart can cause extra beats called PVCs. They are usually benign, ... By age 39, he had it too. On a routine check-up, something else turned up.

Your heart is an amazing organ. It continuously pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and contracts) 100,000 times ...

Some tattoos truly make the heart go pitter-patter. In rats, a graphene “tattoo” stuck to the heart could treat an abnormally sluggish beat. Like a futuristic pacemaker, the device delivered ...