Cardiac arrest — when your heart suddenly stops pumping — is a killer in the U.S., but at least it probably won’t happen during sex. 

Scientists at the Cedars-Sinai Heart Institute analyzed over 4,500 sudden cardiac events that took place between 2002 and 2015 in Portland, Oregon, as part of the long-term Oregon Sudden Unexpected Death Study. Their results, published in the Journal of the American College of Cardiology, show that less than one percent of these cardiac arrest cases, 34 in total, were related to sex, occurring either during sex or within an hour afterwards.

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Source: Mashable | It's really unlikely that having sex will stop your heart, so you've got that going for you