Harvard Heart Letter

Avoiding atrial fibrillation

How maintaining a healthy weight and other lifestyle habits can help prevent this common heart rhythm disorder. During a bout of atrial fibrillation, your heart may beat so rapidly, it may feel as though it’s going to explode out of your chest. Commonly known as afib, this heart rhythm problem can leave you breathless and lightheaded—or cause no symptoms at all. About 9% of people ages 65 and older have afib,…

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