Sex researchers and therapists have long known that women in heterosexual relationships tend to have fewer orgasms than men do. A large new study suggests that this “orgasm gap” persists — and does not improve with age. The numbers The research, published recently in the journal Sexual Medicine , found that across all ages, men of all sexual orientations reported higher orgasm rates during sex - from 70% to 85% - compared with 46% to 58% for women.

Lesbian and bisexual women between ages 35 and 49 reported higher orgasm rates than their heterosexual counterparts. The analysis included data from eight Singles in America surveys, which are funded and conducted by Match.com annually in collaboration with the Kinsey Institute, the sexuality and relationships research programme at Indiana University.

The sample included more than 24,000 single Americans between the ages of 18 and 100. Researchers were especially interested in the question of whether orgasm rates vary by age. Amanda Gesselman, a research scientist with the Kinsey Institute and lead author on the study, said she thought the team might find evidence that the orgasm gap narrows as women develop confidence and learn what they like (and, perhaps, their partners develop skills to help pleasure them).

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