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Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate. A normal heart rate should be regular and between 60 and 100 beats a minute when you're resting. You can measure your heart rate by checking your pulse in your wrist or neck.
What is the most common cause of atrial fibrillation?
Problems with the heart's structure are the most common cause of atrial fibrillation. Possible causes of atrial fibrillation include: Coronary artery disease. Heart attack.
Is atrial fibrillation life threatening?
Atrial fibrillation isn't usually life-threatening or considered serious in people who are otherwise healthy. However, atrial fibrillation can be dangerous if you have diabetes, high blood pressure or other diseases of the heart. Either way, this condition needs to be properly diagnosed and managed by a doctor.
