Another reason to get between the sheets with your partner - it pays you more! A new research by Institute for the Study of Labor, Germany, says having more sex gets you higher salary.

The study stated that people who indulge in sexual activities at least four times a week earn nearly five percent more than their colleagues who do not have an active sexual life. The researchers studied the results of a survey of 7, 500 Greeks aged between 26 and 50.

Lead researcher Nick Drydakis of Angila Ruskin University in Cambridge and colleagues asked the participants how many times they had sex every week, about their employment status, the money they made and number of hours they worked.

The results showed that people who did not have sex often made 3.2 percent less wages than those who had sex at least four times a week.

"People need to love and be loved (sexually and non-sexually) by others. In the absence of these elements, many people become susceptible to loneliness, social anxiety, and depression that could affect their working life," Drydakis, who is also an economics lecturer at Angila Ruskin University, told CBSNews.com.

This study does not suggest that having more sex directly increases one's pay scale. However, they are correlated. In fact couples having sex often tend to be happier, confident, less depressed and have better reasoning ability. Previous research shows that people with health issues generally draw less salary because of their limited productivity.

According to Drydakis, people having a health sex life have lower rates of diabetes, heart problems and arthritis. They also tend to be more outgoing. However, he also said there was no literature supporting the theory.

"Sexual activity is a key aspect of personal health and social welfare that influences individuals across their life span," Drydakis said. "In terms of policy implications, access to effective, broadly-based sexual health education could be an important contributing factor to the health and well-being of people."