“Atrial Fibrillation (AFib) is caused when the two upper chambers of the heart beat unpredictably and sometimes rapidly, in a fibrillation. These irregular heartbeats can cause blood to collect in the heart and potentially form a clot, which can travel to a person’s brain and cause a stroke. While AFib can occur any age, it is more common in people 65 years and older. AFib is more common in people with high blood pressure, heart disease, or diabetes.”

American Heart Association

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