Firefighters’ risk of irregular heartbeat linked to number of on-the-job fire exposures


The more fires they respond to, the higher the risk of atrial fibrillation or AFib — a common irregular heart rhythm — among firefighters, according to a survey of more than 10,000 active U.S. firefighters. After adjusting for atrial fibrillation risk factors, such as high blood pressure and smoking, researchers found a 14% increased risk of atrial fibrillation for every additional five fires fought annually.

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