Too much coffee
kikovic/Shutterstock That cup of coffee does more than just give your senses a jolt in the morning—it gives your heart one too. Caffeine stimulates the stress hormones, like adrenaline, to rapidly pump through your body, which exacerbates abnormal heart rhythms, like skipped beats. “It’s not that caffeine is causing it to skip, [caffeine] is just making it more obvious, more prevalent, and making it show up and cause symptoms,” says Dr. Hussein. Try cutting back on your intake by drinking decaf after your first to see if that helps regulate your heartbeat. Or try switching to tea and see if that makes a difference.