Valvular atrial fibrillation (A-fib) involves a condition that leads to an irregular or abnormal heart rhythm. This can increase a person’s risk of cardiovascular complications, such as stroke.

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Running has so many health benefits, it’s counterintuitive to consider any negative effects endurance training may have on the body. However, research suggests that some runners may be at higher risk ...

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Sleeping on the left side may worsen atrial fibrillation (AFib) symptoms for some people, but more research is necessary. The best sleeping position may depend on a person’s symptoms and individual ...