SHARE For most men, getting their partners pregnant comes with as much pressure as giving them an orgasmso it makes sense why guys might wonder if they have to do both at the same time. The theory was plagued with errors from its conception, down to the gross term itself, which is actually based on a typo. This suction effect was originally described by a husband and wife team of researchers in the UK in the s as insuck theory, not upsuck, psychologist Robert King, who has studied the insuck phenomenon, explains. And like a lot of things from the s, it did not age well. Even if an orgasm created a sucking effect, because of how the cervix moves during orgasm it would not be close enough to the semen for that to be at all useful. As a result, the evidence that female orgasms aid conception is mostly based off of two experiments on the one woman. Subsequent follow-up studies on much larger samples have failed to produce the same results, including a study of over 16, women which found no correlation between female orgasms and fertility. So why has upsuck theory lingered so long? Marriage and family therapist Katie Ziskind notes that orgasms can help with fertility, not by acting as some strange sperm vacuum but by reducing stress hormones and releasing oxytocin, making it theoretically easier to conceive.
Although, for a woman in Additional Jersey suing for child aid, things are a little add complicated. It turns out the man she thought was the father of her twins was only the father of individual of the pair. In this case, two different sperm drench two different eggs. This is what happened to the female in New Jersey. One adolescent was the product of her relationship with the man she brought to court, and the other child was conceived all through a separate encounter with a different man.
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