Modern medicine terms an irregular heartbeat an arrhythmia. The heart has its own electrical system that produces and carries rhythmic signals. This electrical charge originates in the sinoatrial node in the upper heart, travels through the atrium to the atrioventricular node, and spreads through the ventricles via the Purkinje fibers. This stimulates the myocardium to contract and circulate blood. Much like household wiring, if these signals become too rapid, too slow, fire from an abnormal site, or encounter blocked pathways, the heart cannot beat evenly.
Arrhythmias take several forms. Common types include tachycardia, where the heart beats too fast; bradycardia, where it beats too slowly; atrial fibrillation, where the atria quiver erratically; and premature ventricular contraction, where an early, out-of-sync beat interrupts the regular rhythm. Symptoms can include palpitations, a prickling or tight sensation in the chest, dizziness, shortness of breath, and fatigue. In more severe cases, an arrhythmia can cause syncope or lead to complications such as stroke and heart failure, making proper evaluation essential.
Several factors contribute to these rhythm disturbances, including psychological stress, sleep deprivation, high caffeine or alcohol intake, smoking, hyperthyroidism, and electrolyte imbalance. What Donguibogam describes as an imbalance of qi and blood or hypofunction of the internal organs aligns in modern medicine with autonomic nervous system imbalance, systemic inflammation, or hormonal shifts that compromise the electrical stability of the heart. Because bodily systems are closely linked, chronic stress influences the autonomic nervous system and alters the heartbeat, while sustained strain from lifestyle habits burdens the heart over time.
Diagnosis typically involves an electrocardiogram, 24-hour Holter monitoring, and, when needed, an electrophysiology study. If you experience these symptoms, consulting a healthcare professional for an accurate assessment is the most sensible first step. Paying attention to subtle signals from your heart helps protect your overall cardiovascular health.
