I thought this was interesting:
[url=http://www.cnn.com/2002/HEALTH/12/05/extramarital.sex.reut/index.html]link to article[/url]

Extramarital sex hazardous to health?
Doctor: 75 percent of deaths during sex were people in affairs
Thursday, December 5, 2002 Posted: 9:40 AM EST (1440 GMT)

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HAMBURG, Germany (Reuters) -- Extramarital sex can increase your risk of having a heart attack, a British cardiologist has told a congress on sexual health in the German city of Hamburg.

Graham Jackson, a heart specialist at St. Thomas's Hospital in London, found couples in long-term relationships were far less likely to have heart attacks while having sex than those having affairs or one-night stands.

"We found that 75 percent of the cases of sudden death during sexual activity involved people who were taking part in extramarital sexual intercourse," Jackson told the European congress this week.

He added the danger of having heart failure during extramarital sex was exacerbated even further when there was a significant difference in age between the partners.

Jackson said that even though heart rates accelerate considerably during all sexual activity, his research found "couples in long-term relationships, in general, hardly faced any risk of heart failure."

He said measurements on blood pressure and heart rates found sex is generally comparable to a brisk 20-minute walk, with an orgasm putting a strain on the heart similar to an ensuing walk up a flight of stairs.

"All in all, only one percent of all heart attacks are triggered by sexual activity," Jackson said.

That could be interpreted that the EXTRA sex was so much hotter!

You will live longer if you avoid love triangles.  One of the best ways to get shot is messing around with another guys wife.

Maby its that way because your so f*cking scared your going to get caught that your heart is racing?

Maybe because married people don't have sex with each other, they only have sex when they are fooling around.

It's the sound of the wife cocking the hammer on the gun that causes the heart attack.

The way my wife shoots, I would be terminated with extreme prejudice!