How is the term palpitations defined?

Palpitations refer to the sensation that an individual experiences when they perceive their heart beating irregularly or rapidly. This phenomenon can feel like the heart is fluttering, pounding, or racing, and it can occur in a variety of situations, ranging from stressful instances to periods of rest. The experience of palpitations typically signals an awareness of one's heartbeat that goes beyond the normal range of feeling it beat, particularly when the heart's rhythm is abnormal—either in rate or in regularity.

Understanding palpitations is crucial in assessing cardiac health, as they can be benign events or indicate underlying medical conditions, such as arrhythmias or cardiovascular disease. This context clarifies why the definition focusing on the heart beating irregularly or rapidly accurately captures the essence of what palpitations are, distinguishing them from other sensations or conditions related to heart function.