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.

they started beating. While this isn't the first time heart tissue has been grown in the lab, it's the closest researchers have come to their end goal: Growing an entire working human heart.

This workout seemed to help the cells mature. Visually, they began to take on the structures of human heart tissue, and the cardiomyocytes beat harder. A genetic analysis showed that these cells ...

Your heart beats about 100,000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times. Give a tennis ball a good ...

Did you know that your heart beats over 100,000 times a day? Get "heart smart" by checking out these amazing heart facts.

When your heart “skips a beat” it may feel like a brief flutter or flip-flop in your chest. A scary symptom that is usually harmless, that skipped beat feeling is actually an extra beat that ...

Katlyn's heart is now beating correctly ... film offers a depiction of the inner workings of the human eye by combining CGI with a real life story of divers who can see clearly underwater.