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Arvind Sridhar, Postdoctoral Scholar in Cardiology, University of Illinois Chicago

Why is obesity linked to irregular heart rhythms? Researchers found 1 potential mechanism

A sudden onset of irregular heart rhythms can be disorienting. wildpixel/iStock via Getty Images Plus

Atrial fibrillation, or A-fib, is an irregular heart rhythm that increases a person’s risk of stroke, heart failure and even premature death.

While many risk factors contribute to A-fib, one stands out for its growing prevalence worldwide: obesity.

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