By Colin Fernadez Science Correspondent For The Daily Mail and Joe Pinkstone For Mailonline
Published: 20:00 BST, 30 September 2019 | Updated: 16:43 BST, 1 October 2019
Why women orgasm has long baffled science, with no apparent biological reason for the cascade of pleasure felt as they reach climax.
But researchers now believe it may have evolved in early humans to induce ovulation during sexual intercourse.
Orgasms were once vitally important to trigger ovulation - when the female releases an egg - during the sexual act.
In many animals, such as rabbits, ferrets, cats and camels this is still the case, as ovulation happens during sex.
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Experts have been grappling to try and find an evolutionary reason for the cascade of pleasure felt by a woman as she reaches climax. Researchers now believe that it first evolved in early humans to induce ovulation (stock)
An orgasm is a feeling of intense sexual pleasure that happens during sexual activity.
According to the NHS, it can also be called 'coming' or 'climaxing'.
Both men and women have orgasms.
For females, there is no biological advantage to an orgasm as it is not believed to play a role in conception.
It is, it is thought a purely pleasurable experience with no other advantage.
Female orgasm is a complex neuroendocrine process that is