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How does stress cause your heart to skip a beat?

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When you're in a stressful situation, your body releases the hormone adrenaline. That temporarily speeds up your heart rate and breathing, and raises your blood pressure. If you're in the stressful situation for a long time, your heart may continue to beat faster than normal, or trigger extra beats.

From: What Are Heart Palpitations? WebMD Medical Reference

SOURCES: 

University of Iowa Hospitals & Clinics: "Heart Palpitations: Frequently Asked Questions."

Main Line Health: "Heart Palpitations: How Common Are They and Should You Worry?"

American Heart Association: "Warning Signs of a Heart Attack," "What is Atrial Fibrillation?" "What's the link between chronic stress and heart disease?"

National Library of Medicine:  "Heart Attack First Aid," "Atrial Fibrillation."

Johns Hopkins Heart and Vascular Institute: "When to Evaluate Heart Palpitations."

Brown University Health Promotion:  "Caffeine." 

Harvard Health Publications:  "Skipping a beat - the surprise of palpitations."

Reviewed by James Beckerman on May 2, 2018

SOURCES: 

University of Iowa Hospitals & Clinics: "Heart Palpitations: Frequently Asked Questions."

Main Line Health: "Heart Palpitations: How Common Are They and Should You Worry?"

American Heart Association: "Warning Signs of a Heart Attack," "What is Atrial Fibrillation?" "What's the link between chronic stress and heart disease?"

National Library of Medicine:  "Heart Attack First Aid," "Atrial Fibrillation."

Johns Hopkins Heart and Vascular Institute: "When to Evaluate Heart Palpitations."

Brown University Health Promotion:  "Caffeine." 

Harvard Health Publications:  "Skipping a beat - the surprise of palpitations."

Reviewed by James Beckerman on May 2, 2018

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How does exercise cause your hear to skip a beat?

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