Sex and health go hand in hand. Research has linked it to a slimmer waistline, a stronger heart and a lower risk for prostate and breast cancers. It’s also a boon for mental health, since sex is associated with lower rates of depression and better mood.
But Americans today are having less of it than Americans a decade ago, according to a just-released study appearing in Archives of Sexual Behavior.
From 2010 to 2014, the average American adult had sex nine fewer times per year than Americans did from 2000 to 2004, the researchers found. That drop in frequency was even steeper for married couples who live together; they had sex 16 fewer times a year.
What’s going on? “We can only speculate,” says the study’s first author, Jean Twenge, a professor of psychology at San Diego State University and author of Generation Me. But the increase in time spent working and parenting may be possible explanations for the drop in sex among married people. she says. Plus, with the rise in quality and accessibility of streaming entertainment, competition for free time is stiffer. “There are now so many other ways to spend leisure time at home,” she says. The allure of Netflix and other device-based diversions may be elbowing sex aside.
But despite these declines in hanky panky, our lives are far from sexless. The average adult enjoys sex 54 times a year, or a little more than once a week, Twenge’s data show. While married couples under the same roof don’t fool around quite as much, they still have sex about 51 times each year.
That’s a good thing, because having sex once a week may be “optimal” if you’re hoping to maximize happiness, according to research from Amy Muise, an assistant professor of psychology at York University in Canada.