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Why does stress affect heart rate?

I'm 37, male. My heart rate increases while at work, and it appears to be from stress. I work in a high-stress environment, but I've been doing it for years. We are in a bad...

What's involved in an EP study?

I need to have an electrophysiology study because my doctor wants a full understanding of my heartbeat, which feels abnormal. How is this study usually performed?

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