Do you think you’re too old to have sexual relations? You may be surprised to learn that sex can add eight years to your lifespan. In 2010, a study found that not only is sex good for your mood and health, it also does wonders for your heart’s health. Out of 1,165 middle-aged men tested, those who engaged in intercourse more than twice a month were 45% less likely to have a heart attack when compared to people who only had it once a month or less.