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Lifestyle
Maryland doctor explains why heart may suddenly beat very fast, shares what to do when it happens
Supraventricular tachycardia (SVT) occurs due to an electrical short circuit in the heart's upper chambers, causing rapid heartbeats often exceeding 170 beats per minute. Triggers include exercise, dehydration, lack of sleep, and stimulants. While most episodes aren't life-threatening, immediate medical attention is necessary if accompanied by severe symptoms. Always consult a doctor for medical advice.
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