Now you have more reason to be intimate with someone because a new study suggests that people who have sex two or three times a week earn 4.5 percent higher than those who do it less often.

Researchers at Anglia Ruskin University in England looked at the data from 7,500 survey participants to determine the link between the employees' health, sexual activity and earnings.

"Maslow's Need Hierarchy Theory claims that the happier and more fulfilled individuals are in their lives, the more productive and successful they will be in their work, translating to higher wages," Nick Drydakis, reader in Economics at Anglia Ruskin University, said in a university news release.

"The theory concludes that people need to love and be loved, sexually and non-sexually, by others. In the absence of these elements, people may become susceptible to loneliness, social anxiety and depression - all factors that can affect their working life."

The researchers' analysis also found that disabilities also affect the frequency of sex wherein disabled employees have 13 percent less sexual activity compared to healthy employees. Those diagnosed with cancer reported a 5 percent decline in their sexual activity, 4 percent for those with arthritis or rheumatism, and 2 percent if one has diabetes.

More sexual activity is known to boost one's self-esteem, confidence and overall happiness. This positive character can make the employees more likeable, productive and creative at work. However, the researchers admitted that further study is needed to distinguish whether it was frequent sex that fired the employees to perform better at work resulting in higher earnings, or whether these employees' high income moved other people to have sex with them.

The study was published in the International Journal of Manpower.