A survey of 30,000 adults over four decades concluded that sex once a week is the optimum regularity— and more frequent sex won't actually make a difference, reports The Society of Personality and Social Psychology.
Overworked, sleep-deprived couples can breathe a sigh of relief, as lead researcher Amy Muise told the SPSP, "Our findings suggest that it's important to maintain an intimate connection with your partner, but you don't need to have sex every day as long as you’re maintaing that connection." In other words, a happy sex life is about quality, not quantity.
Interestingly, the study had different findings about the sexual wellness of single folks: Unlike people in relationships, there is no association between sexual frequency and wellbeing for single people. The researchers suggested this difference is due to the increased variables involved in a single person’s sex life, such as how comfortable a person is having sex outside of relationships and the circumstances of those encounters (one-night stands, ongoing "friends with benefits" arrangements, a solo poly lifestyle, etc.).
The study also debunked some long-standing stereotypes about sexytimes: Men do not, in fact, want sex more than women, nor are older people having less sex. Muise explained, "Our findings were consistent for men and women, younger and older people, and couples who had been married for a few years or decades."
So keep this data in your back pocket the next time your lover complains that the two are in the midst of a dry spell—once should be enough!