Want to earn more money and lead a healthier life? Have more sex (correlation/causation issues aside). Not that you needed more reasons to have sex on a weekly basis, a recent study of Greek men and women found that those who reported having more sex earned higher salaries and were less likely to suffer from certain health problems. You can read more over at the Huffington Post.
Check out our articles about the psychological and physical benefits of sex here and here, respectively, and more generally about the reasons people give for having sex here.