Rabbits study hold the key in solving mysterious female orgasm in humans

Researchers have tried to understand the mystery behind the origin or function of female orgasm since years. Some previous hypotheses suggest that female orgasm helps bond better with their partners, raising reproduction chances. A few others say that it has no real purpose besides just being pleasurable.

However, there is no definite explanation or answer to this Neurochemical process in spite of various research. But now, researchers might have come closer to unraveling the origin of female orgasm. A new study suggests that this difficult-to-understand experience may be an evolutionary hangover.

For the study, researchers took help of twelve female rabbits and injected them with anti-depressant Fluoxetine, a SSRI (serotonin reuptake inhibitor), for 15 days. SSRIs are known to lower a woman’s capacity to orgasm. The researchers then examined the no. of eggs female rabbits released after mating with a single male rabbit, Frank.

The results showed that those who received the anti-depressant released 30 percent lower eggs in contrast to rabbits who weren’t injected with Fluoxetine but still had sex with Frank. Further tests supported the hypothesis that the anti-depressant was impacting ovulation via copulation. They also showed that the drug was reducing ovulation by entailing the central nervous system than affecting ovaries directly.

The researchers said the results match their hypothesis that rabbits had to experience something related to an orgasm for ovulating. Though its not clear if the experience gave the rabbits sexual pleasure or no.

Study co-author Mihaela Pavlicev said that how the drug impacted the reflex associated to release of eggs while mating in rabbits remains unclear.

Moreover, there are others questions related to the study which still remain unanswered. Is female orgasm linked to ovulation? Were same nerve fibres and muscles involved in reflex found in rabbits present in female orgasm?

Further research is required on other animals to examine this, Pavlicev added.

The study appears in the Proceedings of the National Academy of Sciences.