That happy couples have more sex is old news, but psychologists don’t fully understand the nature of the link between happiness and frequency of sex. Does being happy make couples want to get it on, or does the sex lead to satisfaction in other aspects of life? A team of psychologists at Carnegie Mellon has made some headway toward addressing that question. The researchers recruited a group of straight couples and instructed half of them to have more sex for the next three months. That part worked: They ended up having sex about 40 percent more often than they did at the start of the study. Their happiness levels, though, actually ended up lower than those of the couples in the control group.
Read the full story at New York magazine.