Good news for folks whose bedrooms have more activity than their bank accounts: Research shows that sex is better for your happiness than money.

After analyzing data on the self-reported levels of sexual activity and happiness of 16,000 people, Dartmouth College economist David Blachflower and Andrew Oswald of the University of Warwick in England report that sex "enters so strongly (and) positively in happiness equations" that they estimate increasing intercourse from once a month to once a week is equivalent to the amount of happiness generated by getting an additional $50,000 in income for the average American.