Frequency of sex in dating couples
Since then, hundreds of journalists and other couples have taken the challenge – with varying success.
One study that asked couples having sex about six times a month to double the frequency had a disastrous effect on their sex lives.
But interestingly enough, the study found no increase in happiness when people had sex more than once a week. The study, which analyzed over 15,000 people, found that people who had sex two to three times a week were happier than those who had it once a week, and so on down the line.
First of all, this is correlation, not causation—the study authors can't say whether having more sex made people happier or whether people had more sex because they were happier to begin with.
Muise and her colleagues used data from more than 30,000 Americans to look at the relationship between happiness and sexual frequency. Frequent sex was more strongly associated with satisfaction than one's level of wealth.