Tag
arrhythmia
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What Does Sinus Rhythm Mean? The Heart’s Silent Masterstroke Explained
The SA node, a cluster of cells nestled in the right atrium, acts as the heart’s pacemaker, firing electrical impulses at 60–100 times per minute in adults...
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The Hidden Triggers Behind What Causes Heart Palpitations
The human heart is a master of precision, contracting and relaxing with near-perfect regularity to pump blood through the body’s 60,000 miles of blood vessels...
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What Is Too Low for a Heart Rate? Expert Insights on Dangerous BPM Thresholds
The first time a doctor tells you your heart rate is dangerously low, the question isn’t just why —it’s how low is too low? The answer isn’t a single number...