This "heart-brain" connection is vital for mental health and emotional processing. For instance, a mismatch between the brain's predicted heartbeat and the actual sensation—often occurring during irregular beats or extrasystoles —can trigger feelings of anxiety. Modern Monitoring and Clinical Significance
The frequency of these beats over a specific period, typically measured in beats per minute (BPM) . heartbeat 1
This is the longer phase where the heart chambers relax and fill with blood. Blood from the body and lungs collects in the upper chambers, known as the atria . This "heart-brain" connection is vital for mental health
A single, complete cycle of contraction and relaxation. This is the longer phase where the heart
Triggered by an electrical signal from the SA node, the atria contract to push blood into the lower chambers, the ventricles. Shortly after, the ventricles contract forcefully to pump oxygen-rich blood to the rest of the body and oxygen-poor blood to the lungs.
While often used interchangeably, there is a distinct difference between a heartbeat and heart rate:
Heartbeat perception is causally linked to frontal delta ... - Nature