Based on the study, 18 to 29 year-olds have the most sex, with an average of 112 times per year, or twice a week.
On the other hand, those aged 30 to 39 have sex about 86 times a year, which is just under twice a week. Meanwhile, the oldest of the bunch—those aged 40 to 49—only have sex 69 times per year.
According to the study, this drop coincides with an increase in age as family obligations, day-to-day stresses, and illnesses become more apparent.
Consequently, another study agreed with these findings, as it found that physical changes that occur as we age influence the experience of sex.
“The basic story line that has emerged from these studies is that, as we get older, our odds of developing chronic health conditions increases and this, in turn, negatively impacts the frequency and quality of sexual activity,” says Kinsey Institute head researcher Dr. Justin Lehmiller.
So what happens if you're not having the average amount of sex for your age?
Previous research has revealed that couples who have more sex tend to be happier, while other studies have found that people who report having frequent sex do not tend to be any happier at all. In short, having more sex (or the average amount) doesn’t necessarily equate to more happiness.
So worry not, at the end of the day, it’s still the quality and not the quantity that matters.