Happiness research proves sex is fun
See more » General
Startling statistic from the National Bureau of Economic Research:
Happiest are those who have sex more than four times a week. They are about 6 per cent of the population. Unhappiest are the 22 per cent of people in the study of 16,000 Americans who didn't have sex at all in the previous year.
Shock research: sex makes us happy
