heartbeats
A heartbeat is the rhythmic contraction and relaxation of the heart, which pumps blood throughout the body. Each heartbeat is triggered by electrical signals that travel through the heart muscle, causing it to contract and push blood into the arteries. The average resting heart rate for adults is between 60 and 100 beats per minute.
Heartbeats can be measured using a stethoscope or an electrocardiogram (ECG). The sound of a heartbeat is often described as "lub-dub," which represents the closing of the heart valves. Monitoring heartbeats is essential for assessing overall cardiovascular health and detecting potential issues.