About half of adults in their late 30s to mid-40s have sex at least once a week, making weekly sex roughly the norm for this age group. That lines up with the broader average across all adult age groups, which also lands at about once per week. But averages only tell part of the story, and there’s a wide range of “normal” at 40.
What the Numbers Actually Look Like
Roughly 50% of men and 53% of women between ages 35 and 44 report having sex at least once a week. That means the other half are having sex less often, whether that’s a few times a month, a few times a year, or not at all. There’s no magic number that qualifies as healthy or normal. Once a week is simply where the statistical middle falls.
On the other end of the spectrum, about 28% of people in their 40s who are in relationships describe those relationships as sexless, generally defined as fewer than ten times in the past year or no sex at all. That’s a significant share, and it suggests that low or no sexual activity in your 40s is far more common than most people assume.
Why Frequency Often Shifts in Your 40s
Your 40s come with real biological changes that can nudge sexual frequency in either direction. For men, testosterone levels drop by about 1% per year after age 40. That gradual decline can lower sexual desire and make erections less reliable over time, though the effects vary widely from person to person. Some men notice very little change; others feel a noticeable dip in drive.
For women, the 40s often overlap with perimenopause, a transitional phase when estrogen and progesterone levels start to fluctuate and eventually decline. Lower estrogen can make vaginal tissues drier and less elastic, which can make sex uncomfortable or painful. Some women find their desire drops during this phase, while others actually report enjoying sex more. The experience is genuinely unpredictable.
Beyond hormones, the practical realities of life at 40 matter just as much. Careers tend to be demanding, kids may be in the picture, sleep is often short, and stress is high. These everyday pressures often do more to reduce sexual frequency than any biological shift.
Relationship Status Makes a Difference
People in long-term relationships tend to have more regular access to a sexual partner, but that doesn’t always translate to more sex. The familiarity and comfort of a long partnership can reduce novelty and spontaneity, while the logistics of shared life (kids, schedules, exhaustion) create real barriers. The 28% sexless figure mentioned earlier specifically applies to people in relationships, not single individuals.
Single people in their 40s face a different equation. Dating can bring bursts of high sexual frequency with a new partner, followed by dry spells between relationships. Without a consistent partner, the average tends to be lower overall, but individual experiences swing wildly depending on lifestyle, dating activity, and personal preference.
Satisfaction Matters More Than Frequency
If you searched this topic, you’re probably wondering whether your own frequency is “enough.” Research consistently shows that how good sex feels matters more than how often it happens, though the two are connected. A study on midlife women found that sexual frequency was strongly correlated with sexual satisfaction, but emotional closeness, intimacy, and the overall quality of a relationship were also critical factors. In other words, having sex more often tends to make people happier with their sex lives, but only when the sex itself feels good and the relationship feels solid.
Couples who have sex once a week generally report the highest levels of relationship satisfaction. Having sex more often than that doesn’t seem to add much additional happiness, which suggests that weekly sex may be a kind of sweet spot for most people. But a couple who has sex twice a month and feels genuinely connected and satisfied isn’t doing anything wrong.
The Health Case for Staying Sexually Active
Regular sex in your 40s does more than feel good. One study found that men who had sex twice a week or more were less likely to develop cardiovascular disease than men who had sex once a month or less. Sex is moderate physical activity that raises your heart rate, and it reduces stress, which is independently good for heart health. It also promotes better sleep and triggers the release of hormones that improve mood and strengthen your sense of connection with a partner.
None of this means you should treat sex like a prescription. The benefits come naturally when sex is something you want and enjoy, not something you force onto a calendar. If your frequency has dropped and you’re happy with it, there’s no medical reason to push for more. If it’s dropped and you’re not happy, that’s worth exploring, whether through an honest conversation with your partner, attention to the hormonal changes your body may be going through, or both.