Plenty has been said about how and why women orgasm, but which claims have the research to back them up?
by Laura Marie Meyers

Plenty has been said about how and why women orgasm, but which claims have the research to back them up? Collecting results from recent studies, we're highlighting the juiciest facts about the big "O." Take a look at these surprising finds to learn what makes for better sex, what you can do to prompt your body, and more:
Yep, Size Matters
Based on a 2012 study conducted by Stuart Brody, a psychologist at the University of the West of Scotland, it seems that size does matter when it comes to women who experience vaginal orgasms. Although the size issue has sometimes been attributed to cultural pressure and internalized stereotypes, it's a fact: women do climax more easily with men who have larger penises, preferring 5.8 inches or more.
Women Have Premature Orgasms, Too
Think it's only men who can come early? Not true — women also experience premature orgasms. A 2011 Portuguese study found that 40 percent of women came more quickly than intended during sex, and for 3 percent of women, it's a chronic issue.
Better Communication Leads to Better Sex
Looks like there's a case against "no strings attached" sex — a 2011 study at the Johns Hopkins Bloomberg School of Public Health revealed that sex is far more enjoyable for people who listen, understand another person's emotions, and empathize with their partner.
Read on for more of what studies say about orgasms.