Harvard Heart Letter

Managing atrial fibrillation: An update

New guidelines provide advice on the role of drugs, weight loss, and procedures to cope with this common heart rhythm disorder. The classic symptom of atrial fibrillation — a fluttering or thumping sensation in the chest — can leave you breathless, dizzy, and tired. Caused by electrical misfires in the heart’s upper chambers (atria), this condition affects an estimated one in 11 people ages 65 and older. …

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