Understanding Blood Pressure: What the Numbers Mean
6 min read
Back to ArticlesHeart Health|
Heart Racing at Rest: Causes of Sudden Heart Palpitations and When to Worry
Understand the causes of sudden heart palpitations, including emotional factors, medical conditions, and when to seek medical attention for heart racing at rest.
HH
HF Health AI Editorial Team
AI Health Information
7 min read
|April 8, 2026Medically reviewed by HF Health AI Editorial Team · Editorial Policy
# Heart racing at rest: Causes of sudden heart palpitations and when to worry
Quick Answer
Heart palpitations are feelings of having a fast-beating, fluttering, or pounding heart. While often harmless, they can sometimes indicate a more serious underlying heart condition. They can occur during activity or at rest and may be triggered by stress, exercise, medication, or, rarely, a medical condition. It's important to understand the common causes and recognize warning signs that warrant medical attention.
Main Causes of Sudden Heart Palpitations
Tags
heart palpitationsheart racingarrhythmiaanxietyheart health
Primary Source
Mayo Clinic — Heart palpitations - Symptoms & causesMedical Disclaimer: This article is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your physician or other qualified health provider with any questions you may have regarding a medical condition.
Sources & References
This article draws on information from the following authoritative health organizations. Always consult a qualified healthcare professional for personal medical advice.