Will More Sex Really Bring Couples Bliss?

"Delusions of Grandeur" by René Magritte

Source: Joe Shlabotnik/Flickr

“Tonight is the night,” you think, fantasizing about sex with your partner. But when the night arrives—after the dishes are done, the dog is walked, and you’ve scrolled through social media endlessly—even the thought of sex feels exhausting. You both end up passing out on the couch. Again.

You remind yourself that sex is supposed to be fun, right? So why do you keep putting it off? And is it really harming your relationship if you’re not doing it three times a week like you used to? Would twice a week be good enough? Once a week? Or— dare we say it—once a month?

So, how often should couples have sex for a happy relationship? Let's turn to the research¹ for a more concrete answer.

When it’s good, sex can make you feel satisfied and relaxed. And of course, people often have sex not just because they’re aroused, but also because it fosters intimacy and deepens emotional connection² (read more here). Indeed, study after study finds that partners who have frequent sex report greater relationship and life satisfaction^1,3.

Given these benefits, you’d expect that the more sex you have, the better it gets, right? Well, science has tested this idea. In a fascinating study, researchers asked couples to boost their sexual frequency. Unexpectedly, the couples told to have more sex didn’t report any increase in happiness. In fact, it was the opposite: They experienced a lower mood and less enjoyment of sex⁴. But here’s the catch: The couples in this study were already doing it about once a week on average. This reveals a paradox: Forcing more sex, especially when it feels like a chore rather than an outgrowth of genuine, spontaneous desire, can have downsides.

As anyone who has ever attempted a sex binge can attest, too much sex can be exhausting. But you don’t need a weekend-long marathon to feel the drag. It’s human nature: You get used to good things in life and see them in a less positive light with time. With sex, too much frequency can erode the anticipation and thrill that make it special. One day, you may wake up feeling that sex with your partner has become another item on the to-do list, somewhere between “buy milk” and “take out the trash.” Yes, it might be a case of too much of a good thing.

So, what is the sweet spot? Research shows the relationship happiness boost from sex seems to plateau at about once a week. People who have sex more often than that don’t report being significantly happier than those who do it weekly⁵.

One reason for this weekly sweet spot might be the “sexual afterglow” effect, in which the benefits of sexual activity, including a deep sense of satisfaction, can persist for at least 24 hours afterward⁶. This afterglow effect helps couples maintain intimacy between encounters, creating a sustained sense of connection that carries them to the next intimate moment. One good session, it turns out, can go a long way.

Don’t Compete With Your Friend’s Hot Sex Life

Of course, many people feel dissatisfied in their relationship if their sexual needs aren’t being met. This often happens when partners gradually drift away from physical intimacy—a situation in which the adage “use it or lose it” can become a painful reality, potentially leading to a sexless relationship.

However, not all people need sex to be happy in their relationship. There are people who have lower sexual desire, identify as asexual, or simply don’t prioritize sex—and for some, this is a fulfilling choice, especially when their partner shares a similar approach. They may express love and affection in other ways and still feel deeply satisfied with each other⁷. The key, for any couple, is open communication about each partner’s needs and finding ways to meet them that work for both individuals.

The goal isn’t to meet a quota or to compete with your honeymoon-phase selves or your best friend’s hot sex life. It’s to find a rhythm that feels joyful, meaningful, and sustainable—for both of you. Whether that’s three times a day or once a month, what matters is what works for you—and for your relationship—free from external pressure or arbitrary benchmarks. After all, the best frequency for sex isn’t what the research says; it’s what brings you and your partner genuine connection and happiness.

Facebook image: PinkCoffee Studio/Shutterstock