By Adam Fisher | Kingsley Confidential
A 2006 study found that the increase of prolactin is 400% greater for both men and women following orgasm achieved through intercourse, when compared with solitary masturbation. Why is this significant? The increase of prolactin after orgasm contributes to a reduction of sexual arousal, along with feelings of relief and a greater drop in sexual tension. The researchers suggested that factors such as more excitement during intercourse might contribute to the greater amounts of prolactin after orgasm. While prolactin isn’t the only factor in sexual satisfaction, the implications are important.
How was this study conducted?
The participants in the study were all heterosexual graduate students, with an average age of 26. They were divided into three groups in a laboratory setting: masturbation alone while watching an erotic film, no sexual activity while watching a documentary (the control group), and watching an erotic film with their partner followed by intercourse until the supine partner had achieved orgasm.
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Partner Orgasm > Solitary Orgasm
In a 2011 study on psychological differences between partnered and solitary orgasm, results found that having an orgasm with a partner resulted in higher scores overall on the Orgasm Rating Scale (ORS), (click here for PDF) when compared to having an orgasm alone.