The heart beating right within your chest is a vital organ for keeping you alive. Traditionally, it was also believed to ...

A wave of contraction spreads across the heart - to the left atrium and then to the ventricles. This enables the ventricles to contract together. Sometimes, the rhythm of the heart's natural ...

In the study, researchers discovered several types of neurons in the heart, each serving a unique purpose. One of these ...

Pacemakers send electrical pulses to help your heart beat at a normal rate and rhythm. Pacemakers can also be used to help ...

New research reveals the heart has its own complex nervous system, or "mini-brain," capable of regulating the heartbeat independently of the brain.

New research reveals that the heart has its own complex nervous system, or "mini-brain," which plays a critical role in ...

The heart has long been thought to be controlled solely by the autonomic nervous system, which transmits signals from the ...